It's not that these cards can't be hit by K.Grip, bit truth is that i usually don't care for any of them (with the exception of the pretty rarely played
Back to Basics).
Do you really fear Batterskull? Every time my opponent fetches for it, an evil grin appears on my face. Repeal FTW! Batterskull against us is a huge tempo loss for them, i'd be happy to face it all day.
Humility? Ulamog already takes care of it (yes it works)
Dreadnought? It's pretty rare at the moment, given how many abrupt decays are floating around, but Repeal may do an amazing 2x1 here with low mana investment.
Blood Moon? If you fear it you usually have the option of playing around it fetching your own basics, copying them with vesuva and almost ignoring it. Games will go long for sure
Sneak Attack? A well skilled Sneak&Show player will never pass priority once this hits the battlefield, so destroying it while there's already a hasty emrakul in play ready to smash you isn't particularly appealing to me.
Top? Why would you need to invest resources destroying it?
Counterbalance? Yes, together with Top may be annoying, but UW players lack cc3 cards (a couple of cliques at the very best) so repeal is pretty handy here. Also it's not such a hard lock against us, just keep deploying your lands and they'll lose anyway.
Ensnaring Bridge? As said above, Ulamog destroys it even if it's countered in the process, so no worries here.
Moat? See Ensnaring Bridge above, also considers that Emrakul flies too.
If I would usually end up facing MUD, then i would consider employing it (or maybe playing revokers instead, which give you more widespread options) but for now, i'm focusing on facing BUG at my best. Btw, oracle has proved great in this sense lately, i just would like to have room to squeeze a second trinket mage in.