Have those criticizing the Integrated Astromech mod actually testflown it much yet?
As soon as it was announced, I started running a XXXX list that proxied it. After some tweaking, it's proven to be quite competent. I don't know if it's Tier 1 level, but it's won me around 80% of the games I've flown it, maybe more. It is beatable but is really quite tough, and for me, really demonstrates the value of Integrated Astromech.
Running 5 T-65s with IA at 100pts sounds like it would be pretty broken, to be honest. For now, I'm pleased with the fix. I have a feeling we'll be seeing a lot more of the T-65 in the upcoming season.