Well, some people didn't want it to be a DoT Job, there are some that liked it as a DoT job (who complained that we get only 2 DoTs now), then some that wanted it to focus more on pets, and then there's another side where they want it to be like classic FF summoning, big and flashy summons and attacks, almost like Demi-Bahamut (pretty much asking for a burst DPS).

They can't really please everybody if the community is so divided about Summoner's identity. I think Summoner now is a step in the right direction though, but executed poorly.