It's all about gaming community and the game is mobile legends they always gives free skins only to non meta heroes last time collaboration with king of fighters they give Karina skin Leona for free and this make happy to Karina users 

But this time there is no free king of fighters skin instead of that they're giving one elite skin after recharging some amount and for king of fighters skin mobile legends charging too much 

Because of this many peoples leaving game , 

So I want to say sometimes listen to players