There. I said it. There's only two champions left who can do it, and it's undeniably a dumb thing that removes the requirements of proper positioning from them since they have a get-out-of-jail free card with it or can just gap-close based on a unit that wasn't even there until they hit a hotkey.
and 
do not need ward hopping to function. They have plenty of other things in their kits, and this ability just adds a dynamic that is frustrating to play against.
Remove it from , it can stay on because:
it takes away any skill requirement from Lee's kit as far as engage goes and gives him even more disengage, while on Jax its only used to run away from a gank/hop over a wall
Jax is already a kind of champion that reminds me of the old days when league was still young, he should remain archaic with things like dodge, ward hop, hybrid scallings and other shit
Lee Sin is cancer
P.S. - add it to 
Jax would be slightly unaffected by this change, losing a moderate amount of mobility for escapes or generally hopping over walls. He may or may not require buffs as his disengage will be much weaker.
Lee however, would be greatly affected. Everyone understands that late game, Lee is ass and is reliant on getting his team a pick. What everyone does not understand is that without wards, his engage path becomes highly predictable, especially against champs that can halt him midway. This change would also make him far more reliant on his Q than before and his W feel like a burden and only useful for the secondary cast lifesteal effect. His Q will become not only his main source of damage, but his only engage as well, forcing him into a very binary behaviour pattern.
I know many like to make the argument that Kat can no longer ward hop, but she recieved compensation for that change in the form of her daggers; by picking one up, her E CD is heavily reduced, allowing her to, essentially, be even more mobile than before. She also still retains the ability to wall hop, albeit requiring a fair bit of positioning to get correctly.
Then there is the argument regarding Braum. Why can't he? His main job is to peel and protect, so it makes quite a bit of sense for him to jump to allies.
Jax doesn't have massive movespeed or any other mobility, so I don't think he should lose ward hopping. There are so many champs more slippery than Jax and he is a splitpushing champ. 
tilts me when I have a farm lane or even favourable lane with his double jump bullshit, and then people complain about Jax's q*[zombie-brand-clap]*
I wiould welcome ward hopping disappearing on Lee sin, he is just disgusting with massive base ms and 2 gapclosers.
Just keep in mind that if Riot removes his Utility, they'll likely either buff his damage or his CC.
