The press release says they’ve been making their own servers there successfully so it doesn’t seem like there is a reason they would stop Mini manufacturing quickly.

They did the exact same thing with Mac Pro in 2019. I notice they don't say they'll stop manufacturing the Mac Mini anywhere else. This is a political thing and will change with the political winds.

Two different things. They do not have margin to preserve on the servers.

If I was interested in "performative local manufacturing" I'd also build my own servers, it has the least economic impact.