To say that 99% of what became WordPress was "done by him and his company" completely ignores the rich ecosystem of free and non-free plugins that have driven its value. A competitive landscape of hosting solutions like WP Engine drives increased demand for that plugin ecosystem; such demand, in turn, increases the value of WordPress and the company that shepherds its development.

My sympathies would lie, say, with a small development team, with minimal third-party contributors, for whom donations would make a massive difference in their ability to focus on their passion project, being stiffed by the AWS's of the world without as much as a corporate sponsorship of the project. Or even a small startup who sees a large behemoth supplant their ability to drive revenue via hosting.

My sympathies do not apply to $7.5B companies. At that scale, if your core product is open source and you're not continuing to innovate (including on business models beyond mere hosting) to stay ahead of competitors who are using your product the way the entire contributor community (not just you as the creator!) licensed it to them, there's no moral high ground.