We're talking about "people walking into Genius Bar expecting help with Linux" support. It's not philosophical discussion on what support is, there's literally a specific thing discussed here.
That's one of the several forms of support under discussion, under the specious claim that it would become the expected level of support as soon as Apple declared any level of support for Linux. But as the comments you're refusing to understand have explained, Apple could meaningfully "support" Linux in the form of providing hardware documentation, without making any promises to help any customers troubleshoot Linux running on that hardware.