The current problem is that your software no longer runs. That's a 100% denial of service problem.
Out of curiosity, have you asked customers to run your software in a VM? How did that conversation go?
I already have a bunch of software that I paid for more that 20 years ago and I can't use most of it outside of full VMs. Microsoft didn't ask me if I didn't use them anymore before removing Win16 support.
> Out of curiosity, have you asked customers to run your software in a VM? How did that conversation go?
Customers never got a choice "where to run your software" when all software I develop ends up hidden inside a SaaS service or being delivered via representational state transfer code on demand. They either run it on a browser sandbox or it doesn't run.