Databricks replied that 5 extra questions are not scored and this possibility is mentioned in agreemnet that you approved before exam.

I've retaken and passed, but noticed that on retakenning the fraction of long question was significantly smaller, kind of 25%.
This means that the do react on concerns, so you should wright to support if something happens.
From my experience everyone makes mistakes, but only selected can admit and fix it. So not so bad done from DB.