So I just got to go to my very first regional, and had an absolute blast, even though I did go 0-5 with 0 points
Anyway, I thought I'd address some of the issues that are being discussed from the viewpoint of a newer player who only recently started playing competitively and using the V-sets.

Power Creep
I know Wizards started the power creep and continued it in a major way, leaving the first sets of pieces largely useless in any way, often creating cheaper pieces better in every possible way than their predecessors, but that's no reason to continue the process. I don't mean to be rude, I know a lot of people put a lot of time and effort into creating the sets, but so many of the new pieces seem like they came out of a 'how many special abilities can we fit onto a card' contest. From my point of view, there are two thing the v-sets should be doing.
For the older/worse wizards pieces, create more targeted commanders like the Muun Guard Colonel who just benefit a specific outdated Wizards piece. I think we can all agree (hopefully) that really, Loathsom and Gha were bad ideas from a balance standpoint. Blindly giving out random effects to large groups of pieces really limits the creation of any future characters that would fit into that group. (I know both of those are wizards pieces, not V-set, just using them as an example)

For the newer/better wizards pieces, instead of just improving them, make different versions. Have a guy with cunning? Give his next version opportunist, lower his defense, and raise his attack. Then there are two different options for the character, roughly equal, but totally different, instead of a bad one and a good one. I know that this would be difficult since wizards was extraordinarily bad at costing, but just because there is a power creep precedent doesn't mean you have to continue it.

Ranged/Melee
By the very nature of how the game mechanics work, ranged pieces will always have an advantage over melee pieces. I'm glad some effort is being made to change this, especially since a main part of Star Wars is smacking things with lightsabers, and the more the better. However, creating melee pieces with cost/abilities to really make a meaningful shift in balance would require (in my opinion) some major power creep, and if the balance did shift, you would have to create counters to the new melee pieces so that ranged wouldn't be left behind.

Mouse droids
Having now played against a mouse droid dump in a competitive setting, I can definitely say that something needs to change there. There is just no reason for a mouse droid to be able to make a wall. To me, the obvious fix is to say that figures ignore smaller based characters for targeting (a very common rule in miniatures in general). Since most characters are medium-based, it wouldn't change all that much, and you are creating a universal and easy to remember rule rather than a specific errata. This has the added benefit of making the few large-based characters a little more playable.

This isn't a 'change this or I quit' rant. I plan to attend as many regionals as I can going forward no matter what the future v-sets are. I love the game, the star wars universe, collecting the figures, and losing to Naboo deathshots in 20 minutes. Okay, not the last one. I just wanted to give some feedback on what I saw (again, being pretty new to the whole thing) going forward with the game.

TLDR: Many of the new pieces seem like they came out of a 'how many special abilities can we fit onto a card' contest.

Thank you for your Candide reflection,
and for the constructive criticism in the feedback - excellent, and clear format.

Also, for the 'abridged' version readers only, your "TL:DR" version, nicely sums up the gestalt in a single sentence -
that's the feeling people have of the state of 'competitive' play - that it becomes too much a TKO victory and optimisation min-maxer game only, with a lot of 'hobsons' choice' autoinclude points on pieces which become 'must include in squad to survive".

Thank you again,
and hopefully we see you on the customs board to share some mini or statcard you innovate

yeah, I played my last game against this. I just won't play competitively anymore.

I think a Floor Rules change about 2pt pieces is definitely the way to go.

However, it only takes a few mice to make an mouse wall, which effectively stalls your opponent for a round or 2. I would still like to see an effect that allows bigger pieces to ignore smaller pieces when moving, and to displace smaller pieces when that bigger piece finishes its movement. It's probably never gonna happen though, so it might be a better use of your time to just keep Momaw Nadon in your reinforcements box.

re: mouse droppings
I don't think cost is the major issue.
It's mice being used/abused in way not intended in their original design.

classifying them as tiny,they neither provide cover, or impede movement, is the best answer.