Probably...
I think they’re funny names. I don’t know much about Rosenstein, but “Mr. Magoo” seems to fit weak Sessions pretty well.
The perfect appelation for Rosenstein is Rosenweasel, because it FITS. To me, he even LOOKS like a weasel. It really galls me when Sessions swoons about what a great man RR is. To me, he’s a backstabber from the word STOP!