I don't think its fair to call him hostile after multiple posts slanting him in such a manner. While I also think no voting is great, not having the freedom to play your favorite map blows as apparently there's no server browser.
This isn't as restrictive as say Splatoon, but it still blows if you have a favorite map you really want to play but end up rotating to the ones you dislike most.
Veto system: People veto regardless, "Vetoooooooo, come on vetooooo". Everybody vetoed just because they could.
Voting system: People play the same 3 maps over and over because they know they're the most comfortable/good at it.
This is the best decision for a Halo game. Halo is not Splatoon, not Mario Kart, or w/e else you want to compare it to.