Actually, it is broken down into categories:
1. Sub 2200: Like this change.
2. Barely 2200/2200 RBG players: Hate this change.
3. Best players in game, AJ Glad: Like this change.
I dont see where most of the T2 players hate this change. The only people who hate this change is a very small minority of barely 2200 players, 2200 RBG players(who enjoy stomping on undergeared RBG teams with their T2 thanks to solo que, basically), and Carry sellers/buyers.
Most people who arena support this change. I can see why RBGer hate it; they love getting T2 then queing with their 1500 buddies and doing 8 billion damage and farming undergeared noobs like they are in a random BG. Also, carry sellers/buyers, because one is spending money, and the other is losing it.
Its funny, the most vocal people about this change is 2200+ RBGers, for very obvious reasons.
I think most people all around love these changes, you have clearly stated some of the issues that were fixed and why people did not like those issues being fixed. However, we need to look at the other issues that these changes bring up. The main one being lack of incentive until the end of season after gearing up.
How is the arena ladder any different then other games' ladder systems, though? Like League for example. People que that all day every day, and they dont hand out anything till the end, either. Hell, they dont even have a gear grind. I dont see the difference in why arena ladders cant be the same as say, League ladders. They are virtually the same type of system, except you can get more games in on League on average then you can arena, because of teams.
I understand people want/need incentives, but other games out there work on the same systems and have way way more participation then WoW arena. The game should simply be fun for you to play, just like League is for most of the ELO grinders out there.
I see yall want more titles/etc., but people are going to have to stop being so elitist and appreciate the ones you already have, too, or more incentives are just a waste. Since when does Duelist or Rival mean a bad thing? People have this notion of Glad/R1 or bust, and no matter how many titles they add, this mindset has to change first before any new titles even matter.
It is not Blizzard's fault that players in the upper echelon feel that wayl. They dont feel that way in other games; most people are happy to say they are bronze, plat, etc., whereas in wow saying you are challenger or something makes you a laughing stock.