The only silver lining of not filling the last two scholarships until June is the completion for late quality transfers like Kleiger and Coleman-Lands will be less due to a majority of teams having their rosters pretty set going into next year. Losing a guard like McNeil hurts but if your able to fill his scholarship with one of these two they'll likely be a higher contributor after sitting out (compared to Darius as soph.).
Of course a transfer this late in the game may have seen future rosters and talked through back channels thus has an idea where they would like to end up. So the advantage may not be there in the end.
I think your last paragraph is probably true most of the time. Just a guess tho.