It was done late, and to be honest I'm surprised nobody else thought of this idea until the point it was thought of. I still think they might
have listened to us, and might consider some of the more minor adjustments / features. But for the major points, any of those (if adjusted / implemented) will be later on like reach's TU.
They are most likely very firm about their stance with Halo atm, so if H4 does turn out to be shit, then I honestly think if the community bashes them enough, H5 will most likely "de-evolve". But until then, I believe that they
will remain very confidant in the way they are making Halo evolve. After all, they have shown that they listen to the community. People just think that (in 343's case) after 3 years of gathering ideas and implementing them (a fair amount of time keeping secrets), that all that work will go to waste because the initial reaction is negative. It doesn't work like that. One again, I believe that they want to see what people think of their ideas, and will (and should) accept the criticism after the game's release, and work Halo back up from that point.
And for future posts, please don't spread anymore posts about why it's wrong. They belong in a different thread (which there are lots of) so it won't be hard to find one