Why? Hexa on twisted treeline

Because Rito is a company run by People that have no idea what they are doing. I have personally had contact with them about this issue and they refuse to give a smart answer. In my earlier studies about the Company known as Riot games I have made a big discovery. Everyone that works on Rito graduated from Brown University. Which is a clear sign that People that went to Brown University was born with a inferior mind to our others. Rito will never understand this issue. I blame todays violent and stupid Media. Jk. Didnt mean a single word i wrote here. or did i?

I played it for the first time today and enjoyed it. It's comparable to Rift, except with much more dense teamfighting and a smaller map.

Because Summoner's Rift is too big and you'll never get a hexakill on it except with some champs. It's basically normal SR with 2 supports. They explained this in the Hexakill TT rotating game mode post didn't they?

because thats what it is

Don't mind twisted Treeline, problem is that you'll never get very good potential with the TT items and jungling doesn't work well because there's only a total of 6 camps in the map (Not counting Vilemaw).