Yes.
For full context, my trip is for 9/4-9/13 at OKW (booked thru David's DVC site).
I had a bunch of reservations I made at my 180 day mark that were all cancelled as expected.
Today is my 60 day mark; I watched the website's reservation calendar change for me at 6AM eastern but when I tried Le Cellier, it didn't work (got that error). I didn't bother trying the other in-park ressies i wanted online after that, I just called 407 WDW-DINE right at 7AM when their offices opened and the CM was able to book me multiple in-park dining reservations during my stay (All are for days I already have park pass reservations for).
I did notice that the CM's reservations all had "guest 1"/"guest 2" for the names on them, and I was able to easily update them to our
MDE profiles myself on the website after my call.