> when the same people simultaneously moan and complain any time Mozilla tries to branch out and cultivate independent revenue streams.

I don't know what "same people" you're talking about, but the criticism I see is typically about a) Mozilla's attempts to branch out which failed, b) Mozilla's "branching out" attempts that are just as bad as their reliance on Google (like how they bought an ad company and are pushing their form of "anonymous tracking" or whatnot.)