Meta go one further and literally spell it out with an equivalent example of advertising for an equivalent event in their own published guidelines on Slide - in this case a 'Civil Rights Exhibition' - as eligible to run in the EU.

https://efa-net.eu/wp-content/uploads/2025/09/META_EU_Update...

This was either an automated filter set to 'anti-woke' or some childish attempt at malicious compliance, or both. Thousands of such plays are advertised on numerous platforms across Europe every year without incident or comment.