What is decisive is how the public responds, including the core public for this service here on HN:

Lots of people have objected to most Archive Today links because of their behavior. Will people insist on using other links besides Wikipedia? What will they post? (What would it take to fork and serve Wikipedia's content, without all the editing, etc. infrastructure?)

And will other organizations act? For example, search engines that default put Wikipedia results in infoboxes at the top? Will Mozilla and other non-profits say something?

Wikipedia is a public resource, not a private business, and even businesses bow to public pressure (recently, especially pressure from the right, but that's irrelevent here - the point is, it works). If we don't act, nobody will.