Why does no one complain about Summoners?

[Vortok]

Just like how melee and Warriors are more desired over the less complex classes?

And both of those are getting tweaks in the patch to address those concerns. They more or less said that melee is getting buffed because it's harder to maintain dps uptime than ranged due having to run out of stuff. I'd take that as a good sign for SMN given all the extra stuff a SMN has to keep track of in order to play the class well.