This change is 

I'm not sure about this. I get that it's broken and that's annoying, but at the same time, having to create a python2 symlink to make it work is just as broken.

My temptation at this point actually is to just remove this python2 support from the main vimspector and write a wiki page that says how to set it up manually. Python2 has been deprecated for so long now, I don't really feel like supporting it any longer directly.

Thanks for looking into this.

Linking is only required on Windows, since all interpreters get the python.exe name there, irrespective of version.
On Linux there's no such issue, and I expect the same to be true on MacOS.

Vimspector support for Python 2 is valuable to me since it helps with porting abandoned software.

Should you decide to keep this functionality, I volunteer to test debugpy-python2 and fix any issues that may arise with it in the future.