"You're over extended, I can't gank your lane!!"
This line triggers me so much.
For starters, some champions are naturally just pushing machines and rely on constantly shoving. Not to mention, shoving your laner under tower is the best way to keep them pressured and prevent them from roaming.
Secondly, if you see a lane overextended with no vision, there's a good chance the enemy jungler is going to be there. There's no excusing lack of vision so long as trinkets are up but they're not always up either. Counter ganking is one of the best ways to win games as a jungler and waiting for someone to overextend on the enemy team is also the worst way to attempt to gank. Dives, lane ganks and even just showing up in the middle of a fight will consistently have higher success rates.
So please, understand that at some point in the game, you have to take towers and that's going to require pushing pretty hard. Maybe in RiceCake Elo, this idea of never pushing and all going mid for ARAM for 50 minutes is meta but in semi component elos, players push to force advantages. And as a jungler, these are the easiest lanes to gank because you can control vision, dive and have the most predictable counter ganks to setup.
And let me stress one more time: trinkets do have down time and you can't ward everything.
etc. Tower diving them is difficult and dangerous.