> This is a case where I'd argue deviating from the "official" article title is warranted

Not really. "macOS Server gets worse in 5.7.1" is a purely subjective opinion and there's no reason this personal opinion should override the actual article's title.

I personally have never used macOS server and from that context, the actual title ("Prepare for changes to macOS Server 5.7.1") makes a lot more sense.