As with Microsoft's OS's reaching End-Of-Life and no longer supported, so does Stardock's software, particularly that specific to a now-dead OS.

The only 2 Microsoft OSs still supported by Microsoft are Windows 10 and 11, and 10 hasn't got long to live, either.

Currently my machine [Win 7 Ult 64] has 8 functioning VMs, from Win98 se to Win 10 Pro, some of which are running appropriate vintages of Stardock's software, having been a customer/user of Stardock's software for decades that was never an issue, as versions were always saved to HD as part of the process of their use.

The bottom line is of course there's no support for these installs anymore.

Warez use can always be seen as a potential option except for 2 very real issues.

Firstly, almost inevitably you will be opening yourself to virus attack [as you said and brick your system].

But..

Secondly, you run the very real risk of losing access and support to your current versions of the software as Stardock has a zero tolerance for piracy. 

I think the fact that those old OSs are severely vulnerable to attack is being overlooked in the retro fad. How long will that trend last? How much does it cost to provide those versions and maintain them vs. possible profits? Those are also business decisions.

Stardock long ago arrived at the decision to advise folks to download the most updated version of their software before their subscriptions expired, as all the versions could not (realistically) be stored for downloading.

From the number of posts around the requests for this or that version of x or y program, far less than 100% of folks complied.

As for the "as is" part? Human nature being what it is, I guarantee that there would be demands for changes, improvements, etc.