Based on the very bottom of https://www.acronis.com/en-us/ransomware-protection/ it says "FREE for everyone" for this product, next to saying "Personal" and "Business" for two of their other products. As such, I believe it is indeed allowed for commercial use.
I use Acronis True Image for my backup solution at home, which comes bundled with this ransomware protection. I have no idea how well it actually works against actual ransomware, since I've never actually had ransomware on my home network yet. I can say that it has annoying false positives with respect to Visual Studio 2017's installer for their Python stuff, where it constantly puts up prompts asking you if it's ok that some bad process named "pip" is trying to modify 2,341 files or whatever because you're doing an upgrade. I'd imagine it'd be the same if you ran pip via the command line but I've never actually tried that. I imagine that other package manager exes will cause similar false positives whenever doing upgrades.