Hate came from people who didn't know how to beat Raiden... I mean he was good but even pre-patch he wasn't FP or EC.
That being said good luck wiith him now. I honestly don't know how Raiden is going to open anyone up anymore. I no longer have any motivation to NOT stand there and block all day, especially since he has some ending lag on most of his moves. The only reason you didn't block and punish before was in case he ended his chains early and went for a grab reset.
I wish they'd just taken out his infinite grab... No they took out ALL of his grab setups. In 1v1/2v2 he's become decidedly mediocre since he no longer has a way to really open up a blocking opponent. In fact, he's one of the few people who can't combo off of throws at all anymore.