ANet seems to be doing a pretty good job of listening to their players, adapting the game and trying to constantly make it more fun. Long gone are the days of Everquest where any player suggestion is like a sacrilege. I think we should give them the benefit of the doubt and see how it goes. If it’s not fun or broken, I’m sure they will change it.
Since they asked for input, however:
I like the idea of having options for a dungeon to have “res-rushing” or not, depending on desired challenge/loot.
I also think it’d be a good idea to have a sort of milestone within each boss that allows either a player to rally, or the boss to have limited resetting. For instance if the a boss’ health bar where to have sections that if reached would allow a downed player to rez, or if everyone wiped, his health would only reset to that point. (I’ve always felt if we hurt the boss he should at least stay hurt for a while, right?)
Just my 2 cents.