Meanwhile, I absolutely WON'T be referring to it as 5.5, in spite of probably agreeing with you as to how much of a rules revision it is, because I don't think that the "point five" name is anymore indicative of what it is than any other name. Honestly, I think it sucks and I wish they'd called 3.5 "Revised Third Edition".
Like I said before, "point five" was used ONCE in something like 15-20 rules revisions. It IS NOT the be-all end-all tell-tale name that designates a partial rules change. "5e Revised" would mean just as much. "One D&D" is the name of the PLAYTEST. Just like D&DNext was the name of the 5e playtest. The 2024 books will have a name. Wait for it. You can argue with what they are called when it is announced.