We have a consistent issue where families try to reset their passwords on their own but don't receive an email. Then their EMS account has to be deactivated, reactivated, and then receive an invitation in order to reset their password. It's ridiculous takes a lot of administrative time for us and needs to get better. Families with an existing account should just be able to receive an email and reset their password.
As long as families have an existing account, I think you can just email them this link (https://app.blackbaud.com/signin/forgot-password) to reset their password and then they can login to your school site. This is because their Blackbaud ID is linked to your school account. This would prevent you from having to deactivate and reactivate their account in EMS.
I do agree with you that they should try and make it easier though.