looks like someone is still in the phase of kissing some devs asses.
mate, that won't give you anything, just let it be ;D

it's the first time they used the phrase "skill enhance" for a skillbloom (as far as i know). so everyone would think that it's something new, but it isn't.
you could also say it's just some kind of advertisement, even if it's a realy bad (or vague) description for a skillbloom.
and if anyone knew what a skillbloom is, why adding this description?

oh and "increase" is nevertheless another word for enhance, but you're right, together with damage you could increase the possibility to trigger the battleskill.