I think why it needs to start selling data services should also be asked. At the very least everyone should have equal access to Wikipedia. Using "Big Tech" as an excuse to charge is not relevant in my humble opinion.
https://www.wired.com/story/wikipedia-finally-asking-big-tec...
Edit: I would like to add that I think the Wikipedia Enterprise is not about big tech as Wikimedia suggest, but selling real-time streams of edit data to financial organisations.