Sorry - me again.
The reason I asked the question is that removing the file from quarantine is one of the first steps in the instructions. Here is what's written in the relevant forum:
Finish the detection process and reboot if asked by Anti-Ransomware.
After reboot disable the Anti-Ransomware protection.
Restore the file from Quarantine and add it to the exclusions.
Find the restored EXE file that was quarantined, right-click on it and click "Send To >> Compressed (Zipped) Folder". Attach this ZIP file also to your report.
My question was is step 3 really safe.