In censorsing they might have amplified the story, but this amplification only occurred after the matter/case was decided. That is too late.
> If you decentralize you will end up with a media for each particular group, and you will have less engagement as you are only discussing with people you agree with.
This already happens with centralization, as the OP raised. Multiple groups at least offers the choice.
The question is, if media centralization continues, what evidence/perspectives could have been removed from the public sphere, and what impact could that have on impartiality?
Tech has the potential to decentralize power. Alas...
Guix does not distribute Firefox and instead distributes GNU Icecat, which comes with the unremovable libreJS and an extension to make UPS's site work without JavaScript.