The author isn't just moving their personal setup; they're also moving their business operations. It's not some slacktivism 'I don't like the US any more' issue; it's a 'how can I maintain my income now the US is firing all its glass cannon' issue.

Yeah except he made multiple exceptions and justified them with "OK well I guess these can stay because they're better than what's available in Europe." So it's not exactly "I have my values and I'm sticking with them no matter what."