some great questions on this thread -
me hopey the boardwide CE steal it is a turn-structure question,
like those 'resolves immediately things' for targeting and all, (since its an SA which steals CEs, to presumably bypass disruptive)
if its a 'at time of squad building' approach,
similar to having 2-3 uniques on the board during a game, and that is perfectly "legal"...
it would be a wtf

So, I want to say "you can't"...
but, it will probably wind up being just like the Uniques approach, so you can... hehe
Hows this for a hypothetical though;
a character uses force valor or battle meditation (that Komari Vosa Force Power that grants a lame CE),
the vong then steal that CE generated from force powers... muahaha