I don’t think shots were intended to be fired at the Mozilla corporation, who can’t stop talking about their default, opt-out AI, but it paints a stark picture of the difference between a company that preaches privacy and choice, versus a company that actually provides those things.

I think they're also taking shots on telemetry. Firefox uses telemetry as evidence to support their decisions in ways that sometimes seem contrived or statistically incorrect (similar to only x% of people turned this default feature off, therefore it is good), making me feel as a user that contributing my telemetry to them is actually a bad thing that is encouraging their behaviour. Meanwhile TDF makes great software that follows what the community wants and needs without any telemetry collection.