Earlier quoted context omitted.
I don't think neutrality serves the powerful. Neutrality serves the 'truth' otherwise it wouldn't be neutral in the first place. Your point only stands if you assume that the partial source would side with the 'good' side on average. And being perfectly neutral is not possible, no.
Neutrality is problematic because in practice it serves the powerful, like every instance of bureaucracy and scientism we can point to through civilized history. Instead you are appealing to some politics-free context-free notion of neutrality which might as well be a made up word then. Humans and institutions are not truth objects, so your incorrect argument is in conflating this with a discussion of access to truth…
I.e. it is better if the puppets think they are living in a fair democracy, since they might act like they do, decreasing the power of the puppet masters. The opposite is concepts like the series "House of cards", that instruct people to play the game and be "political".
I define "neutral" as loosely "trying to not be biased".
Like, for example, pretending until it became way over the top too embarrassing that the president is mentally fit for another 4 year of any work, is a good example of being "political" about it.
Gaslighting that backfired badly.