I find it hysterical that people will try and fetish shame on a pirate forum for a game where you get tormented by evil women's footwear.
Download 1.0.2 from the Google Drive a few pages back, it fixes the scenes bugged by the two hearts animation and endless pissing bug.
Can't really test something when it's bugged. On the current version, you can avoid every single grab by choosing one of the cursed abilities.
As far as for the intended, Hydoscreen blocks milk splash and insulate blocks the electro heels, the rest you can only speculate for. There are a few grabs that grab block doesn't help with, so who knows how you're supposed to block them.