Weird, I haven't seen any recent banners frame it in terms of demise of Wikipedia. The urgent banners I've seen are about the time to complete the fund drive. Along the lines of: If X% of users paid $Y then the goal would be reached in Z minutes.
If you assume the fund drive exists to help keep the lights on then I think it is natural to treat it as an existential issue for Wikipedia, but that doesn't seem to match the specific language used.
If you assume the fund drive exists to help keep the lights on then I think it is natural to treat it as an existential issue for Wikipedia, but that doesn't seem to match the specific language used.