One thing I noticed on these forums is that people think all classes should be equal. Not true. Some classes will be better at some things then others and in different situations. PGL has higher evasion then other DDs. So in a standard party, in which it isn't serving any tanking role, of course it will and should put out less damage. Just remember that PGL (insert any other class here) are classes and are meant to be a little more flexible. Not everyone can be DPS king. Also, this game is still in alpha so it is likely to go through major changes before we can actually judge the merits of any one class in total fashion.

All that said, I am not saying we shouldn't have discussions on the future of these classes but just remember they are unfinished and likely to change.