Nearly all professions can build on summoning skills/traits, it's part of the game.
If your build does not work on them, try some other build. Or profession. In general, high AoE damage wipes the trash pretty quick, that's why not many summoning builds survive mid fights.
Sometimes there might be some need for balancing, but generally it has been fine even before gw2 release date. I'd say in general, summoning builds have not been very strong, especially outside pvp arenas.
rock paper scissors