To an extent, sure. I'm not saying they can't make any improvements, but most people are complaining about one thing: time.

That's what I don't understand, why people are in such a huge rush to beat everything and get all the gear asap. What then? Sit there until there is new content?

I guess it also depends on how you grind. People who refuse to be in FCs for whatever reason and use duty finder... ok, that might get boring. I run with FC mates, we get on Mumble, joke, talk, have a good time. Dungeon seems to go much faster that way.