Presumably the issue with scripts is that without any kind of online activation or automatic installation, they are really trivial to copy. That removes a lot of incentive to develop and sell them. Ken1171 discussed that in his interview,

Those issues exist to an extent with content, but content shows up right in your render. The use of scripts does not. And there's also a difference between some python script that is just a small text file vs content that is many times larger and spread across multiple files.

It would be ideal if the script installation worked in Windows 7. But considering Windows 7 hit end of life a year and a half ago, and Windows 10 came out six years ago, you're lucky Windows 7 works for anything. Personally, I wouldn't connect a Windows 7 computer to the internet at all, that's just not safe. And it's well documented that you can still upgrade to Windows 10 for free so.....