It's true, but unfortunately, instead of learning from their mistakes, 343 decided to run away from what made the original games great as quickly as possible with Halo 5.There didn't need to be a group of "new" and "old" Halo fans if the transition from Halo 3 to Halo 4 would have respected the source material better. You could write an essay on everything that changed from the gameplay, story, sound design, music, multiplayer, and art design.
The series might as well be called something different at this point, it's a completely different animal, and one that I am none too fond of.
A real shame. :x