Maybe it's my playstyle but I don't mind all the DoT's. For what I am using summoner for I think the class plays perfectly. I use Ifrit more than Garuda but I am also not doing end game with Summoner. Basically summoner for me is a multi target machine (note multi-target not AoE). I foresee in coming expansions more DoT's and ways to make them stronger, last longer, spread further, etc.