Sure the criticism about Privacy Sandbox is valid.

News journalists should dog food Firefox (to encourage end users) and then avoid Chrome. (i.e) they make sure the webpages work great with Firefox. Usually everything works better with Chrome. The reason for the give would be sorry... Our livelihood depends on tracking/ads etc. Oh BTW, I (as a journalist ) am all for privacy but my corporate overlord (CondeNast incase of Ars) forces us to do this/that.

It is the same thing w.r.t. Firefox.