Anyone else find abilities like Fiora's W to be very toxic?

I feel things that just stop abilities things like 's W, 's W, 's R, 's R, even 's W are very un-fun to play against. Honestly I don't find fiora to be that annoying, (Most likely because no one knows how to play her at my elo) but just the ability to negate things like ultimates just feels wrong. Like if I'm about to land a crucial ultimate in a team fight and just throws out his windwall, it makes me feel useless and annoyed. I don't really feel like criticizing riot on these things because they were creative, but let's be honest for a second, what do they actually add to the game? One thing I really don't understand is why 's R is blocked by 's W, the name of the ability is "Unstoppable Force" so why can she stop the ability from doing damage? Here's an idea, why not make all ultimates non-negatable? (Not including QSSing stuff like 's ult), Like if shoots her rocket, Yasuo couldn't block it last second. It doesn't really make sense thematically or anything but gameplay wise I feel like it would add a much higher level of satisfaction and take away some of the frustration caused by these abilities. Obviously somethings would need rebalancing and stuff but it is an idea no? Put your thoughts in the comment section, by thoughts I don't mean complaining how stupid riot is or "Rito logic" I mean an actual conversation that maybe would at least help us understand what we are feeling.