Seeing negativity from some testers is disheartening. But come to think of it, ever since TOR was announced, there was turmoil.
Anyone remember initially how upset people were over the artsize? The ugly oversized lightsabers and giant hands?
After that followed a wave of negativity from SWG fans. It's still a hard pill to swallow for many that this is themepark with all the inherent problems intact(presumebly?) kill stealing, queues for pvp, everyone doing the same quests, no sense of altering the world, spending frustrating amounts of time finding groups, hardcore vs casual.
And ever since then there has been "waves" of other disappointments. For example, space combat on rails, lack of variaty in races, no day/night cycles, WoW-like Battlegrounds and Raids, and so on and so forth.
TOR has had a difficult life before it even was announced. Between the hordes who want it like WoW with an end game like WoW that will satisfy their sadistic lust for loot and elitism, and those who who are so fed up with the current trappings of MMORPGs that they want to stab themselves.
If TOR will yet be another game that is not fun to play at the end game, during the Warzones and Operations and Heroric Flashpoints, then I am not sure how much more faith I can have in this genre. It's been almost down right disappointment after appointment's since the early days of the original Guild Wars, and WoWs release.
For a genre to fail this hard continually is very interesting. Development teams seem unable to stay the path.
Good luck.