I’ve seen stuff like ArcGIS on torrent sites the last time I checked. Dunno about Mnova.
Sidenote: their licenses are crazy complicated. I really wish there were just FOSS alternatives to everything. I know there’s QGIS/GRASS GIS for ArcGIS, R for S (or is it the other way around? I forgot), MuseScore for Sibelius/Finale/etc., and so on. And also LibreOffice for MS Office of course. But I think some academic/professional software is just so niche and/or has institutional players (like companies, governments, and universities) that are so committed to it that it can be hard to get people to change.