Hadn't seen anything stated about this, so I figured I'd ask.

It definitely would be.

it's essentially the same but on ps3 port so yeah should be allowed

Okay, cool.

I honestly don't know any PS1 games where PS3 is banned.

if i am correct, the ps3 runs on the stock speed while the ps2 runs the games faster. But i can be wrong off course.

Most likely