The banner shown in the article has a subtle tone of demise: if you don't donate, Wikipedia itself stops being independent, could not thrive, could not give reliable or independent info. And then the money is primarily spent in things other than Wikipedia. They never state or at least insinuate where the money go.
This sounds like the exact CTA of countless YouTubers asking for Patreon support. No level of coffers or ever increasing support changes their ask. (which to me is ok)
Patreon supporters generally know where their money is going: Straight into the YouTuber's (or whatever) pocket. That's the goal of the contributor and there's generally no particular deception on the YouTuber's part either. I want to give them $5 even if they already have a lot of other $5, because that's the value I'm getting or whatever.
I agree with others that Wikipedia very carefully makes it sound like they've got a sob story where if you don't donate they're going to shut down, so they probably get a lot of donations made with the belief that they're funding Wikipedia, but instead it gets shunted out to something else. Maybe something the donor is OK with, but maybe something not.
