Yup. And for every Lasan Kromah, you get 10 Antwoine Andersons.
KO actually had pretty good luck with grad transfers when used properly (e.g. not pushing a young core out of the program):
RJ Evans - Holy Cross (not great, but ban year so not KO's fault)
Lasan Kromah - George Washington (good, provided great minutes in title run)
Sterling Gibbs - Seton Hall (good, but incorrectly used by KO as PG resulting in decreases in stats across the board)
Shonn Miller - Cornell (great, was so good at UConn and underutilized by KO)
Antwoine Anderson - Fordham (had his moments but overall struggled at UConn)
David Onuorah - Cornell (very bad and over-utilized by KO)
So excluding Evans since it was the ban year, that's 3 of 5 players that were very talented and had relatively effective seasons at UConn.
That being said, KO went to this well way too much to compensate for lack of player development. Ideally Kentan Facey would be what Shonn Miller ended up becoming in 2015-16 (not the year after), Sam Cassell Jr. becomes what Gibbs was instead of going to Iona and effectively putting up Gibbs numbers there, Makai Ashton Langford would be here instead of Antwoine Anderson, and Enoch/Durham here instead of Onuorah.
Not to rehash KO's failures but that's a pretty bad track record on player development/retention.