1) All Abilites but Wonder Guard can be Skilled Swapped.
2) I didn't forget about the typeless bit..but I did standard math, Ha, Nice catch. So that's my fault. Swift will be adjusted momentarily.
3) Oh yeah, For some reason I thought that was passed down like with Baton Pass. My fault. Edited
Back to 1).

Skill Swap does not do anything negative to you to hinder your movement for the moment. It brung no lowering of stats (hell you gained an immunity), no ailments fell onto you and you lost no health. You Ability switched, and that's a part of a Pokemon that falls outside the scope of Magic Bounces power (I say this cause you can't Magic Bounce any ability that shifts your ability, like Mummy. Worry Seed is the exception to the rule, but it can be argued that being put to sleep is a status ailment and therefore can be Magic Bounced.)