@RemoteComputerTechnician - I would be very interested to know if, after a couple of days use with your suggested workarounds:
1) Have any Event ID 5379 for Audit Success returned?
2) Do all your expected functions (backups, scheduled programs, AV and other Win32 programs) still work OK?
3) Do all of your UWT APPS still work OK?
4) Do all of your sharing/casting and other network activities all still function as normal?
Incidentally, as regards the DefaultAccount (the DSMA account), Microsoft have this to say:
From here:
https://docs.microsoft.com/en-us/windows/security/identity-protection/access-control/local-accounts
Recommendations for managing the Default Account (DSMA)
Microsoft does not recommend changing the default configuration, where the account is disabled. There is no security risk with having the account in the disabled state. Changing the default configuration could hinder future scenarios that rely on this account.