avrutg that is true but the removal of unused permissions is a security plus even if it might be a convenience negative for this specified use case. As GrapheneOS is a security focused OS it makes sense for the default behaviour to remain so.
The only alternative and solution for this sort of thing would be to use a third party application and the only ones I know of require things such as root or adb over network and the network permission to function which goes against the security model.
If you feel that the option might be useful though and wish to request it you can add it to the issue tracker.