Does such an angle exist from the google perspective? Probably.
Is it ‘just’ this and nothing else, I’d argue no.
Matters tend to be more complex than simple black and white statements.
I for one think Mozilla is one of the most visible actors with regards to privacy promoting thought and FOSS, with widespread ‘mainstream’ reach. If it wasn’t for Firefox I’d have to use chromium for instance, and that would make the world a sadder day.
I do agree that funding from google is an obvious conflict of interest and probably influences policy in a way not a 100% aligned with humanitarian goals. This is definitely less than ideal and I think everybody involved on this side of the fence would like to see that change. Maybe you could help them with that?
