Obviously not - sharing ships with good intention shouldn't be punished so hard - I've had a lot of my ships stolen only because I wanted to help out a faction whose members flew them only a couple times when I left it. Same with one guy getting banned having access to my or faction ships - that's just unlucky, trusting the wrong people. If I share them even after the ban well - that's likely intentional as I'd have to physically move them with staff help and know it's because he is banned - why would deleting them be an issue.
I take it couden ban would have had entire scra shared fleet that must be ancient locked - no fair