Is this guy for real?
Mozilla says that key points are processed locally to protect your privacy in the release notes, but says nothing about leaking your privacy in showing the link preview (and enabling it by default).
As opposed to the case where you don't have a link preview, and you click on a website to see what it contains, and they get your IP. The author seems to think Mozilla should have protected our privacy by having someone act as the proxy for the request. Because involving a thirds party that receives all these requests and does work for us for free is absolutely how we protect our privacy.
The user might also have mobility impairments that makes a fast click harder, resulting in a longer hold time.
Yes, a feature clearly designed for pushing onto that juicy "people with mobility impairments" userbase.
I don't like the direction Firefox seems to be headed in, but damn people really enjoy getting outraged over everything they do. Around here they get ten times more shit than any other comparable project.