I can agree on most of this. I haven't played in s1, and barely in s2 tho so I can't tell.
However removing titles from season 3 seems not really fair. Even if some might disagree ( they always do ), people were playing, people didn't script to win or cheat in 3v3, and bugs didn't carry someone to rank 1 besides Runic Corruption and BM dmg being bugged for the start of the season.