I'm not the one making assumptions, it's thousands of independent hosts, and all big tech orgs (including specifically Apple in this case) who are making that a

I'm not the one making assumptions, it's thousands of independent hosts, and all big tech orgs (including specifically Apple in this case) who are making that assumption. I didn't say the assumption was right, just that it's trivial to avoid falling afoul of it by choosing to use a different TLD.