honestly im ok with this.
Pyke was designed to be a Assassin, and also a support.
Currently I see too many games where Pyke is destroying games by himself.
Im not against a support role carrying a game by himself, but I see it as a problem when all hes building is stuff like
for an assassin champion and have no downside.
Pyke was first designed to be a nontank, risk taking champion, but current Pyke is too much like a brusier.
With this new change he'll probably go back to building damage which is what Riot first designed him to be, and with building lethality, he'll be faster and longer stun duration,so theres some compensation for this.
This is like back in time before Akali's rework when tank Akali used to be a thing. Its better that Riot found this as a problem soon before Tank Pyke becomes more primary build.
And for why Lethality, if Riot choose to scale off of bonus AD for those Stun Duration and W's speed, people will then start building items with health/AD like
, since Pyke was designed to be an assassin and lethality is whats popular for assassins, scaling off of those seems fine.