Hi! Thanks for reporting!
Having no access to a Mac (regardless of the OS version) I can't really test this out, but I *suspect* (as I can't be sure) it might be something related to the way recent versions of the OS handle executables not downloaded from the App store.
If that is the case, there might be some tickbox to tick or untick in some System Settings, or even the possibility to consider this specific executable as an exception, but my knowledge of the OS kinda stops here.