I mean sure, but there's a bit of a difference between "sells data to no one really knows who" and "sells data to no one really knows who AND PALANTIR" which the original commenter seem to be flagging as a problem.
Example: selling market preferences of a town rather than the individual people in it.
But at least with Brave, the initial funding information was made public, so there's already more information available to users in comparison with Mozilla. Mozilla just said: "there are a number of places where we collect and share some data with our partners" - that could mean literally anyone.