Update on Client Access Rules Deprecation in Exchange Online

I have a question about the following scenario:

Category 3: Migrating Protocol-Only Rules
Protocol is: RemotePowerShell

The guidance states:

"For any existing users to whom this rule would apply, run the following:

Set-User –RemotePowerShellEnabled"

If I look at users in our tenant they already have "RemotePowerShellEnabled = True", I assume this has been set by the associated CAR we have to set this property value for all users.

If this is already set for all current users, why would we need to run "Set-User –RemotePowerShellEnabled $true" for all current users?

When the associated CAR that sets Remote PowerShell to be allowed access to all mailboxes is removed by this change, it's not going to make any change to the current user setting, e.g. it will remain "RemotePowerShellEnabled = True"?

If this is the case then we wouldn't need to run Set-User –RemotePowerShellEnabled $true" for all current users, only ensure that it's run for all new users created after the CAR is disabled.