I've found the perfect word to describe what's wrong with league
Arcade-y. That's what it really is. Arcade-y. Engagements don't last long enough, cheap tactics are favoured over clever strategy. It's like a top-down class-based First Person Shooter, except every time you die to something cheap, you get weaker and weaker.
Look at this beauty
https://boards.euw.leagueoflegends.com/en/c/community-creations-en/lsvbOTiB-the-golden-age