Not true, all orange gear has slots for mods that can be exchanged and upgraded. Meaning, there could be mods at level 50 that could make your orange gear better then purple gear from flashpoints/ops. Of course, until we have a database that tells us ALL loot from synthweaving and flashpoints/ops, these are just guesses.

I can't speak for marauder's but currently I'm a lvl 32 Juggernaut and am having NO issues whatsoever leveling. I feel like dps is a bit lower then I would like but since I'm specced as a tank that comes with the territory. Using certain CD's I have no trouble taking on a Gold with adds or 2 Silvers. I'll end up with maybe 25% HP but a quick channel hatred and you'll be on your way. The lack of long term CC is a bit annoying but I think Force Push, Force Choke and a few other abilities make up for it. When taking on groups people need to make sure they are utilizing all their cooldowns and not expect to face roll through all content. You have to play smart as a Warrior and you'll have tons of fun.