You seem to be suggesting that removing the aggressive fundraising from the equation automatically means the revenue goes to $0, and the organization runs out of reserves in one or two years -- except that's not how anything works, and you know it.

Ultimately, what you're asserting is that "only" having two years of runway is somehow dangerous to the survival of the organization, and is a legitimate justification for using aggressive tactics. Yet, you would be hard pressed to find another organization whose reserves are double both revenue and expenses. So it's rather silly to assert that Wikimedia is in a precarious position.

If the organization is really concerned about not having enough cashflow or reserves, then maybe they should stop giving away 20% of their revenue. Charitable contributions are great, but that's not the proposition being made in the fundraising tactics, which all aim to convince us that Wikipedia is going to die any minute unless every user immediately donates. These are the same tactics that PACs use, and are based on classic social engineering methods with the sole intent of manipulating people into feeling concerned or even panicked. An organization like Wikimedia should not be engaging in these tactics, especially when they provably don't need to.