No, as an ex-4 year WoW player I gotta agree with him. A level 20 has literally no chance against a 29, no matter how you look at it. It just wasn't worth playing battlegrounds during the first 4 or 5 levels in a bracket, because level 29s would just destroy you. WoW has gotten a little bit better when it comes to this by making it nigh impossible to twink your character. However, when I was playing SWTOR as a level 10 marauder I was still doing a lot of damage to people even though they were a extremely higher level, due to bolster. Sure geared level 50s own you still, but you can still damage them, and make an impact in the game.
However, once 50s get decked out in gear, bolster will not be enough for 1-49 players. I believe Bioware will not implement a 50's bracket until there is a substantial enough population for it.