If users choose a client which supports the extensions, they don't have to mess around with v1 and v2 hashing, just like today.
As for the school of thought, personally, I'd prefer something else, too. I'm in camp location-based addressing, or whatever it is called. There more I think about it, a complete redesign of twtxt and its extensions would be necessary in my opinion. Retrofitting has its limits. Of course, this is much more work, though.
Yellow orange clouds
A photo that shows part of a page from the EPA Graphics Standard System, it includes some nice black and white geometric patterns.
Screen capture from my Fourthwall shop page with t-shirts, stickers and mugs.