Why does everyone complain about Lee Sin's mobility?
I'm by no means a Lee Sin main, but Katarina and Jax do the EXACT same thing. Just place a ward and jump/shunpo to it (there are probably a few other champs that do this, but these 2 came to mind immediately). They can also go to an ally if no wards are nearby. If you're going to whine about mobility, whine about EVERYONE who has it, not just one champ.