All this is a war of words and it's not yet easy to predict what's going to happen next. For now, the central bank seems to have got a small victory, at least by slowing down the adoption there.
Full story: https://www.btctimes.com/news/Mexico-central-bank-blocks-ricardo-salinas-bitcoin-plans
That's hilarious! A businessman has the guts to respond to their finance ministry in such a way, may have some serious connections at the political level and also the power to purchase beaurocrats to turn the tide in his favor.
But it's quite clear that Salinas has just conveyed his willingness to adopt crypto without any regulatory backing. At least for the time being! We will see what future holds for the crypto community of Mexico.