I don't think the two issues are related.
First, my recollection is that we've been at 85, maybe 84, on NSD every year (allowing for things like expecting jabari back), except maybe this 2016. You may prefer oversigning with the expectation of attrition while CPJ prefers to balance known attrition with rewarding deserving walkons, but that's philosophical.
This past year, we had 15 seniors and 85 on scholarship and signed a class of 18.
The early departure of Hankins, Stargell, and Summers was known before the end of the season, iirc.
Gary Brown and Dante Wigley announced their decisions to leave late, iirc, but we were in on some big names that last weekend. So, I think we were at 83 on NSD.
Also, the Scout Eligibility board doesn't show Amp Simmons and Tyler Merriweather who are both on the team, so we are only down 5.
Since then, Chris Griffin, and Jake Whitley were put on medical, and Whitehead and Leggett are gone, while Muns was added.
-2-4+1=-5