To be fair, some of those you listed are situational.
is a displacement that also displaces himself.
requires stacks to take effect.
requires stacks on enemies to take effect.
you got me here. Outdated design.
Is a delayed tether, not even point and click, shouldn't be on list.
requires stacks on enemies to take effect.
1 second melee range stun is pretty fair imo.
it's on her ultimate.
this is aids to go against, but i'm unbiased. On ultimate so it's k.
delayed root. Displaces himself, can be bad.
tether, wrong list.
soft CC. You can still fight back.
on his ultimate, has slow travel time.
can't argue with you here, but it displaces himself.
situational, requires wall.
idk much about Quinn, but her CC is the least of her problems.
short ranged taunt.
melee stun.
not point click, it's short ranged AOE stun.
root lasts .75 seconds, empowered 2 seconds requires setup.
melee ranged displacement ability.
very frustrating to play against, but it's ult.
requires setup.
requires cycling through cards, unless blindly pick top of deck.
melee stun.
instant suppression on ult, but can put himself in bad position.
hate this champion, but ult has travel time.
melee ranged displacement ability.
2.5 second ranged polymorph, where you are slowed and cannot cast spells or attack. Nobody thinks it's fun to play against this, unless said person actually plays Lulu. I agree with you that her kit's fine. It's up to date and all that, unlike Pantheon. But like Pantheon, she's not fun to oppose in a lane. I don't praise a Lulu player if I get beat by one, just like Panth. I don't think at the start of the game "Oh gee, Pantheon! This is going to be a true test of skill between two players!". No, I just try not to get point and clicked to death. Lulu's ranged point and click CC is more frustrating than many of your listed examples, as she does not require any setup to use it, nor does it take up a large budget in her kit.
I'm sure she's fun to play as. And I'm not saying that she's overpowered, skillshot abilities are balanced accordingly to have stronger effects if they land.