because that would just be op. if he gets the ms at the end it allows for more counterplay because he's deciding whether to get the ms boost or damage you, not BOTH at the same itme.
Well currently if you try to get close with the boost with your w, will only lead to your ass getting kicked. Unless its late game, getting close without your w is a bad idea. Late game it has low cd. However late game, everyone deals a whole lot more damage than you will ever deal way faster.
Aurelion sol was bad vs assassins because he couldn't completely get away from them without blowing flash or his r. Now he can W to run away from with like 400 ms.
No you wont. That speed boost also decays. However this speed boost helps vs immobile champs. Champs like yasuo and kata still beat your ass and you cant get away. Multiple dashes > a mediocre speedboost.
Yes, it makes his early game worse because he cant duel anyone as easily, but a champion that can roam as easily as him should not have a good early game to balance out the overall strength of his ganks
Then whats the point of picking him? He is an early champ (or rather now mid?) not a late game. Just played a game where i reached late game. I tried my best but alas i couldnt deal enough damage. The enemy zilean and ezreal were spamming their q (and w in the case of ez) and one hit of them would sent me to fountain. I just couldnt stay around for my stars to deal dmg. And my stun well, is as good as 0.75 can be.