I'm completely against locking things like accessories (it would be bad for glamour, bad for PVP, bad for not dumbing down the scant freedom of choice we have) but I think it's a good idea to implement hard stat checks on entering new content. It's not even a fun gaming experience to power through the whole game in a week and be carried through all of the harder dungeons; force people to shop around a bit and gear up. The minimum requirements don't even have to be all that high - and they probably shouldn't be, given how facerollingly easy most content is - but if this problem with people wearing stupid gear indeed exists on other datacenters then I think it's a fair solution.