So malzahar went through hell for over a year
All because people, or riot (i'm really not sure which came first), complained that he had the ability to dictate the pace of the lane, in this case slowing it down, to some extent even when he was behind.
So I've got to ask, given that the primary contention of malzahar was this idea of tempo and forcing the other play to play at a pace which might not have been the ideal pace for that champion or the player might not like.
Then in the skirmisher update (though really this subclass could be put into the diver update because of how much overlap there is between their items and how silly a 7 champion class update would be) shouldn't yasuo get a similar treatment? In fact, most of the skirmishers would be in need of this kind of treatment. Many of them force the enemy to match their pace, rather than meeting somewhere in the middle, even if they're behind. The only difference being, where malzahar would punish mobile champions and forced them to play at a lower pace, yasuo (and again most of the skirmishers) punish the immobile champions and force them to play at a higher pace.
I don't want to say that this is a double standard, but any argument which is applicable to one is also applicable to the other, in the exact same logical structure.