Microsoft (exceptionally?) just released a security patch for XP
against the WannaCry ransomware worm:
https://answers.microsoft.com/en-us/windows/forum/windows_xp-security/is-the-patch-for-wannacry-available-for-xp/23be85a8-5410-4ab1-bbd9-938476d840cb
...so in a sense that's an admission that it is still a relevant
platform in practical terms.
-- Hisham
I saw that. That's highly, highly unusual, as it's the first update in
three years for XP. But you're right that it is basically an admission by
Microsoft that XP is still practically relevant despite being officially
dead for three years.