As for trading, I don't see anything wrong if they enable it in bank branches or online with some reasonable fees, but as for the custody service, they should warn their clients what it exactly means and explain what will happen in the event that crypto assets get hacked from their bank. I can't say what the rules are about the insurance of savings deposits in the Philippines, but regardless and if they exist, I would advise everyone not to store Bitcoin in banks or centralized crypto exchanges.
I don't see how anyone thinks that a crypto-friendly bank will help in the fight against inflation? Investing in Bitcoin or any altcoin (especially in the short term) does not provide any insurance against inflation, and as long as we have this kind of financial system, inflation will be a part of our everyday life.