I think this is normal, for any game. As soon as something is "out", the exaggerated negative feedback will be spammed almost everywhere.
I don't think that's a big issue here tbh. We have been COH players for over a decade. Some people might get a bit emotional because they love the franchise, but we have been with LELIC (TM) for ages
We might get frustrated or give them a hard time (And tbh they sometimes deserve it) but I have high hopes for the game and I believe they will make yet another game for us to play for years and years.
I also believe that no apology is needed. These people are professional and they know that this reaction is completely normal. Trolls are everywhere and you can never shut them up.
The best we can do is to just give them constructive feedback. That's all. Even the
"Stupidest" ideas should be stated in a tactful and constructive way.
The game is not gonna be released any time soon, and I think that's a good thing. Relic is on the right track too, in my opinion. I don't think we're going to have a DoW 3 situation, based on what I've seen so far. I have high hopes for the game.