You can't have every unit having equal stats, it would take the fun and strategy our of IA. When I started playing IA a few months ago (maybe more now?) I thought certain tanks were hellishly overpowered, but as I continued to play I started to learn the ins and outs of how to counter most types of attacks.
The big takeaway here is, Imperial Age =/= Renegade; it's a game unto itself, and needs to be assessed as such.
Right now, I'm mostly happy with the balance.
As for playing low count matches, and getting roflstomped, there's not much you can do about it; tell more people about IA, and get them playing.