They haven't abandoned it but that title makes it sound like they have.
> Servo is a huge project. To keep it alive and making progress, we need continuous funding on a bigger scale than crowdfunding can generally accomplish. If you’re interested in contributing to the project or sponsoring the development of specific functionality, please contact us at join@servo.org or igalia.com/contact.
> Let’s hope we can walk this path together and keep working on Servo for many years ahead.
That said, in the longer term the solution to the WWW"'s Too Big To Fork problem surely has to involve getting much more of the "specification" expressed precisely in declarative specification languages, so as to greatly reduce the handwork involved in generating a half-decent implementation.
Once a big donation is given, you get to wonder what sort of influence that person (willingly or not) has had on the project. A much better model is a large amount of small donations, the incentive becomes to serve the maximum amount of these people.
Servo has no "customers" as such. It has potential future project users and there may be a support/development economic return for those users to fund further work.
It's very similar to Rust the language. Rust itself is not a startup or a company product.
The economics are completely different.
Should probably have a "(2024)" appended to the title.