This should be remedied, as they are likely something that could be amazing. I am debating on making a video that shows other graphical effects in the game that should definitely be used as auras.
As it stands now, though, they are so dim, and feel like they were just put in as an afterthought.
Yeah, this is an issue many people have.
http://forums.spiralknights.com/en/node/28635
http://forums.spiralknights.com/en/node/27985