Both freedom of expression and automated decision-making are already quite heavily regulated in the EU today with even more and tighter rules currently the way[1]. These new regulations also happen to extensively cover the combating of fake and illegal content by online platforms.
Additionally this seems contrary to Mozilla's claim[2] of commitment to human dignity, individual expression, accountability, and most of all: trust.
Strange thing to be investing in for any other reason than to make it disappear, which I don't think is the plan. Money would have been better spent elsewhere... or anywhere else, really.
[1]: A Europe fit for the digital age https://commission.europa.eu/strategy-and-policy/priorities-...
[2]: Mozilla Manifesto https://www.mozilla.org/en-US/about/manifesto/