Animation canceling

This is a really big part of league and is honestly a really poorly designed characteristic of certain champions. Most champions that have the ability to animation cancel are considered overpowered.

Examples:

Riven: Why does her W even have a momentary self cc if she can simply cancel it immediately? Anyways a good riven can burst you in less than a second at level 1 whereas a bad riven will trade poorly with you taking an entire second or two to finish her combo due to animation canceling. This champion would be insanely easy to balance in comparison to the nightmare she is now if we'd just remove the animation canceling completely and compensate her with buffs.

Kennens ult having a 0.25 - 0.5 second wind up time that can be canceled by flashing upon cast. This short period shouldn't be negated by flash as it's the only counterplay to it.

Yasuo: E+ Q combo with knockup and utilizing flash upon the E + Q cancels the knockup animation on the minion causing you to knock up the enemy instantly. This combo shouldn't work in my opinion because the E+Q should go through on the target you hit first BEFORE flashing not AFTER. This is a combo that makes many players think yasuo is "overpowered". This same combo seperates a good yasuo and a bad one as he can land a long range nado then E+Q a minion and ult as if he just flashed so the q damage goes through, then the ult damage auto and q damage follows it up for a high amount of burst. Some of these combo's should be removed and the champion should have a revert to his base stat nerfs from before.

Caitlyn E + W animation canceling. A good cait combo does lots of dmg and looks super strong.

If I missed any champions throw them in here.

TL:DR Animation canceling should be considered a bug as it is a pain in the ass to deal with from a visual level of gameplay and it also has a lot of balancing concerns that should be adressed upon it's removal.