I just played the "new" tutorial (didn't know it gave ez XP, so I didn't care) and I have to tell you, this is the most well-rounded tutorial ever. It teaches you LITERALLY everything there is to know about League.
For example that whenever a team is losing, people will just give up and AFK. Both in the 2nd and 3rd part of the tutorial, the AI will just chill at base, while the other 4 is trying to make something out of a bad game. The 5th just doesn't give a fuck. The AI probably wasn't even in the game anymore but playing Fortnite instead in the background.
I wish every game's tutorial was this realistic.