That END block is in main/caller's package, not the $global's package. A PM/Class can't control where its instances stored (lex or global). The programmer of the PM doesn't write where the PM is used. Are you suggesting a package weakref list/hash and an END block in the same package in the that destroys all live instances of that package?
Re^2: orderly global destruction? blessed references gone? XS ok
Replies are listed 'Best First'.