If T1/T2 is that important to folks they should treat it that way.
It looks like amateur hour up in there. I’m also a non-believer in the shoes/rubber band style getup. Always seeing the majority of the people fail and flail in the videos trying to get their feet in. It’s almost like one person had luck with it and the internet jumped on it as the thing to do.
While you are moving while getting them on, you’re moving very slowly and perhaps dangerously. A person who spent 10 seconds in T1 to get them on first will be traversing that section of road you’re farting around with your shoes on. Making it a wash.
Cyclocross rules you for mount/dismount:
https://www.youtube.com/watch?v=pAF1FkdVm9M
And the bike swaps:
https://www.youtube.com/watch?v=Z2uBTCcnkJw
Then again, they do it dozens of times per workout instead of maybe 5x per year.