There's a lot that's not being said in (2). That warrants more extensive justification, especially with the issues presented in the parent post.

They're using the harnesses provided by the respective underlying Operating Systems to do virtualization.

I'd like to explore that topic more too, but I feel like the context of "we deferred to MacOS/Windows" is highly relevant context here. I'd even argue that should be the default position and that "extensive justification" is required to NOT do that.