You can make spellbreaker work perfectly fine as dps for PvE even if it's not top tier. I play spellbreaker almost exclusively for PvE and have done all endgame PvE content with it and without any major issues and I don't even follow the snowcrows meta build. Yes people will argue berserker or the upcoming bladesworn will do more dps, but no content in the game requires you to minmax and 99% of players and groups aren't speed running. There are some endgame fights where spellbreaker feels pretty weak though such as fractal 100 and twin largos.