My guess is that you are probably OK with these new numbers. See how you go with workouts using your new MAP and FTP.
If there is an effect from the dropout, it’s most likely only in the MAP, as your FTP should have been corrected during the 20 minute constrained effort.
Check this post on another HM thread: Conflicting instructions on Half Monty - #10 by Sir.Alex.Cook You may be able to contact Wahoo Support to get them to do a deeper check in the data for you.