Are champions becoming more and more complex as each one is released?

I feel like champions being released today vs champions released 2 years ago are becoming more and more complex and thus giving higher and higher skill ceilings for players to work towards.

While this isn't inherently a bad thing, I feel like we've reached a limit where in order to play a champion you need to create your own spreadsheet of said abilities and how they're used. Complexity is great until the point where each champions abilities become an essay of different uses.