My reading of their AI statement says your kernel contributions are no longer welcome in PostmarketOS, and also, since you're encouraging others in their space to use such tools, you're in violation of their code of conduct.

This applies to the person you're replying to too.

I think their policy is poorly thought out, and that little good will come of it. At best, it'll cause drama in the project, and discourage useful contributions. It's a shame, since we desperately need an alternative to the phone duopoly.