Confirmed with Rakshith, this is not a regression because snapshot for encrypted PVCs was introduced in 4.8 only And this does not affect non-encrypted PVCs. I am still not clear about how easy is this to happen in the field though.
Thanks Rakshith, moving this to 4.9 We can consider it for 4.8.1 also.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Moderate: Red Hat OpenShift Data Foundation 4.9.0 enhancement, security, and bug fix update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2021:5086