I'm not sure PS2 games will be receiving the PSN treatment, to be honest. At least not right now. There doesn't seem to be a huge demand for them and, in any case, I'd be super duper surprised if the rarer ones, like the Gun Survivor series, ever crossed over. They seem to be completely forgotten in the shuffle.
I think everyone's main issue was the complete departure from the original DC games. All in all, from what I've seen, it doesn't look terrible. Probably shouldn't have been named Dino Crisis but definitely not the worst thing I've ever seen.