What are the alternatives? I had to do a little windows shell programming when working on Chef orchestration to set up windows servers.
There was "flow" programming in WebMethods I had to work on that tried to provide a snap in place component GUI to program data transformation.
I would say that there is something limiting in all the GUI based interfaces I have had to work with. Some option you can not get to, or it is not apparent how two things can communicate with each other.
Text based options have always seem more open to inspection, and, hence, easier to reason about how it works. YMMV.
The idea is it would be nice to have an OS that is a little easier to learn for the next generation of devs.
Google has been working on Fuschia for a decade, and far as I can tell, the only place it was ever deployed was to a Google smart home hub 5 years ago. The only Fuschia news I've heard since then was about layoffs and killing projects related to it (e.g. Chrome on Fuschia).
If Google isn't moving any of their own phones over to Fuschia after a decade of work, it's hard to imagine them unilaterally flipping Android to it and forcing the hand of every Android OEM to follow suit.