I find all the comments about wrong roster focusing and match ups hilarious...
PG is meant as a catch mechanism for accounts not ready for this particular conquest to unlock the unit afterwards. And the last few battles failed pretty hard at that, requiring very specific toons and strategies to win, making the catch up part very hard.
The new swolo battle seems better, but I would hazard that having 4 million GP as a prerequisite, should be enough of a entry barrier.
I had no problems with any of the PG, even if I only managed to 3* the tie interceptor Pg this time, but they should be actually manageable for most 4 mil GP players.