Council has rejected this for the following reasons:
-1 from my side. The language is weird. The justification for the change is now in the xep. I don't like changing final xeps without prior discussion
I even have doubts about the usecase in general. That itself makes it rather unacceptable for me to do this change to something that's already Final. -1, but might change after discussion and wording change
Specify account creation via HTTP as non-exclusive alternative to XMPP