Thank you for the feedback. You're right, it is necessary the re-run Job Wizard once you change a password.
Unfortunately I have no information whether it'd be changed in the next release.
Please leave a feature request on our forums, and our R&D team will consider such functionality.
A best way to share your thoughts about product features is to use our forum - veeam-endpoint-backup-
It will help other customers to vote for or against such functionality and allow our R&D to decide should they include it in the
next release or not.