It seems pretty clear that regulatory concerns prevent them from providing liquidity in that pair, would selling xtz in that pool be seen as materially different from asymmetrically providing one-sided liquidity, from a regulatory perspective? It seems like the only way this could be permissible from a regulatory perspective would be with modified protocol such that xtz was asymmetrically added with no return of tzBTZ, similar to liquidity baking but from TF rather than inflation?