I do. Single files are handled with quotes around arguments just fine. For lists of files you need to use NUL as a separator. That's not really hard to do once you are aware of the problem but ergonomics could be better - which is something useful that POSIX could change.
Because they don't deal with lists of files so this whole issue doesn't apply? Yes. Even more reason to just fix the shell scripts where this matters instead of trying to impose additional restrictions on filesystems with many decades of history.
