Originally Posted by darkling
Not really, no. The "trinity" came from MMO powergaming and simply put, didn't exist as a concept beforehand. You can pretend they did all you want, but the system wasn't built around them.
When 4E came along, they took the trinity (and the bonus role 'crowd controller') and built all the classes so they firmly fit into one of them. That limited the concept of gameplay for those character types. Gone is the Dexterity based warrior, gone is the front line warrior-priest, gone is the strength based thug rogue. Those character archetypes simply don't fit into the roles.