given Rhino miraculously got the likes of "Paranoid", Jefferson Starship, "Billion Dollar Babies", Roberta & Donny, the AWB, etc for the Quadio programme, while i've no info at all, it's just a hunch, it feels reasonably likely to me that the U.S. Quad mix of "Machine Head" was originally proposed as a standalone Quadio Blu-ray by Foraging Rhino and then some bean counter got wind of it's existence and thought "ah-ha! we'll just have that gem not re-released for 50 years for our upcoming Deluxe Edition to boost sales a bit..!!"
i've had to set aside any desire for "Late For The Sky" tbh since Foraging Rhino said it was sadly off the table
but things change of course so hopefully it will appear one day. as for "The Divine Miss M." that would be dream come true Quadio fodder, just the out and out
hoot of a mix on the 'Boogie Woogie Bugle Boy' going around and around and around (!) the room should be enough to sell it!!