Maybe. For this to work, I would either have to:
a) modify POINST to create a log of all installed files, and make sure the uninstaller uses this log when uninstalling (doable, but not trivial).
-or-
b) delete the files one-by-one in the uninstall section (rather than using 'wildcards'). This means the filenames will appear in two places of the script, which makes it harder to maintain...
I think timovjl's suggestion is cleaner and safer.
Pelle