I'm also making an assumption that Toyota is behind the curve, it could just be a temporary situation because of a demand spike. I am on the list from Helm when they come back in stock and so the list may just be growing until they get enough on it to do a print run. Toyota is all about just in time, so no sense printing a bunch of 2-inch thick manuals that will just sit on the shelf for 5 years. My guess is most dealerships have the manuals as electronic files and it's just knuckleheads who still want printed manuals.
'91 Pickup - Imelda / '08 Tacoma TRD - Donna
'09 Kawasaki KLR650
'98 Rhygin Juke SS / '12 Gunnar Rockhound 29 / '16 REEB Dikyelous
"Our task must be to free ourselves from this prison by widening our circle of compassion to embrace all living creatures and the whole of nature in its beauty. Nobody is able to achieve this completely, but the striving for such achievement is in itself a part of the liberation and a foundation for inner security. " --Albert Einstein