The tweet from their official account[1] reads:

Thank you to everyone for making your voices heard.

We have secured assurances necessary to support our diverse creator community and have suspended the planned October 1 policy change.

OnlyFans stands for inclusion and we will continue to provide a home for all creators.

This seems to match your theory.

[1]: https://twitter.com/OnlyFans/status/1430499277302816773