Hello Mark,
I have good news. We finally found the bug and fixed it. We have also updated the export and import script to consider for the bug. Migration of SAML works as expected.
Good luck migrating your 2.4.4 instance to the latest 3.0.2 version.
Regards,
Arun
P.S: I am closing this ticket. Kindly reopen it in case the migration fails.