All current comics are filled with dated materials. It's only that we as readers and writers pick and choose which aspects we're willing to accept.
And it's Eviless, which is slightly less ridiculous than Evilness. There were no issues with Eviless as far as I'm considered, when we live in a universe where names like Sinestro, Atrocitus, Dr. Doom, and Mister Sinister are just fine.
As for Blue Snowman, her concept was fine in my opinion. She just really needs someone like Grant Morrison to come along and embrace the kookiness of the character.