Warrior Enchantment

I'd assume that they use lack of waveclear as a balancing factor for a champion's kit and don't want to give it to all AD junglers as a matter of course.

I'd honestly be happy if we got the true damage burn from Spirit of the Elder Lizard back. Honestly, I quite liked that.

Because that can be a niche and although many champs use it, not all ad junglers, (kinda same reason Runeglaive was replaced by Runic Echoes)

Personally though, i would love it for my main

if you pick tiamat over jungle item you will have way faster jungle clear. Warrior aint worth getting

The biggest problem I see with this is ranged junglers will no longer be able to get the warrior enchant.

They replaced Runeglaive because even being auto-based was too specialised for a jungle item. They're not going to add Tiamat, a melee-only component, to the jungle item.