so any phone (the newer ones at least) will be compatible with stock android? Great way of ruining the Android One project LOL That's very Google, but actually great.
They did a similar thing with the Pie beta last year. You could flash the stock image on a Mi Mix 2S and Vivo X21 (e.g.).It wont kill android one. Most people have no idea how to flash an os that are buying a new cheap phone. Google will probably kill it for other reasons though.
The final release was never made available to those devices. It was just for beta testing purposes.