This, however, will not apply to some services, for example [...] Google Summer of Code (GSoC) as it is ethical and the users in this program contribute very often in FOSS.
I find this statement in disagreement with the more general aim of the project:
stop monolithic organizations taking over the web and the software we use, for the sake of our privacy, security, freedom and health.
Allowing Google to be the funding source for so many FOSS projects is one of the ways to take control of the FOSS "ecosystem" and silence those few like you who oppose their monopoly.
Furthermore, a lot of the software that Google develops, funds and uses for their surveillance activity is FOSS (think Chromium, or all the AI/ML tools).
I can discuss this topic in more detail but I hope the explanation is sufficiently clear. Thank you for creating and maintaining this project!