Is it safe to use pirated software for Doctoral research?
It’s not OK to use unlicensed software. I would suspect that advisors would be very concerned about one of their students using an expensive software package for which they didn’t have a license, since they might have liability for letting you use it.

If it’s so important, then you should talk to your advisor about getting a license.

While I am not personally familiar with people having degrees revoked for using unlicensed software, I could certainly sympathize with arguments calling for sanctions against people who do so.