[Idea] Increase the max movement speed cap to 155%, but give mobility skills -10% maximum movement speed penalty. This way the cap is still down to 135% /w mobility skills, but you can opt out of using them for more passive ms

[Ceno]

In which case, hard no, because that greatly widens the gap between masteries with and without innate mobility skills - which was the whole point of introducing movement runes to begin with.