I'm pretty sure when 99% of the people said in depth events they mean lore, new champion/rework and gamemode, not super complicated currency system that is designed to make you spend money.
(note I don't think this applies to this event, we get a new champion, Nexus Blitz and the entire dating sim minigame so I think Riot is doing a good job with this one)
Spirit Blossom is an in-lore event with non-lore skins.
Cashmiir
Spirit Blossom is an in-lore event with non-lore skins.