It's nothing but opinionated. You can't honestly call this a "fact" and go on to claim that HN is hypocritical. That's... is there a word for hypocrisy about hypocrisy?
(The first point made is not even that bad, it's just that quagmire following it which dilutes the whole thing)
So the fact here is that Mozilla made that choice to be in bed with Google.
The sad irony is Chrome on Android will insist on asking users for the default search engine choice (in the EU at least https://www.techspot.com/news/81273-google-android-users-eur... ).
Maybe think about it another way. Imagine Greenpeace defaulted to offering to book supporters private planes to get to every protest. It is this nature of extreme distance from organisational values that Mozilla is expressing when it defaults to Google search.
This isn't that hard (except for doing without the big bucks, which is hard: Brave is building up small revenue to large, not profitable yet -- again, we pay the user >= what we make, 70% of gross revenue for user-private ads, 15% for publisher partnered ads [not yet launched]).
They just want the Google $$$, privacy be damned.