I don't know about a support offering for the free dev. edition, sorry.
Have you tried something like
python recoverSys.py --command "RECOVER DATABASE UNTIL TIMESTAMP '<your timestamp>' CLEAR LOG"
?
I am not aware of any other option to "skip" the recovery of log entries. And due to the sequential nature of the redo logs, skipping corrupt entries will lead to inconsistencies, which is why there is no option for that.