1. idiocy like this causes "tiny" delay pulling back from gate
2. that delay means lose place in line for take off, delay magnifies
3. delay on arrival means possible longer delay if bumped on landing
4. arrival gate could charge or be delayed further

Can result easily in 30-45 min delay to try to make a connection meant to be an hour to make, if a large airport or terminal change, bam, you've missed your connection

No, it's failing basic comprehension, bending the rules because you want some random person who couldn't or didn't bother to plan ahead to like you, and as a result possibly screwing over a shit ton of other people.

YES

And possibly caused people to miss connections.

I'd be rageful if I missed a connection because of bs like this