@Riot have you ever considered having negative repercussions with over loaded kits?
I mean with yasuo slightly has it with a measly 10% less crit damage for an amazing ratio of x2 crit chance. (laughable trade off imo) but at least his ultimate has a prerequisite behind it.
And you do it with olafs ultimate trading out defense for power, and Kalista gets 90% AD ratio for her extreme mobility. These are more on the appropriate side and I dont believe they are too harsh.
But why isnt this implemented more? If this was more abundant we would see champions with over loaded kits being more balanced out. Hey you have 3 forms of CC? Well that should have a massive trade off.
Just my two cents though.