I have wished for longer fights since the game launched. I think the fights should be more engaging rather than just stringing your actions together as fast as you can. It makes defeating monsters feel less rewarding when they go down in mere seconds with relatively no risk.

That being said I would compromise with the increased time spent killing each, there would be an increase equally in EXP per mob. I just think the battles would feel like an accomplishment rather than a zerg of abilities.