AFAIK, you can get ACR-I as a tourist. It's supposed to be after staying for 60 days, which is a long time but there are always shortcuts.
Certainly not as easy as it used to be.
The type of ACR-I card you are referring to is called "Tourist ACR-I card". A person who intends to stay in the Philippines for more than 60 days in PH needs to apply for a so-called "extension of stay" one week before the first 60 days of his uninterrupted stay expires. Once extension of stay has been granted the person will receive a "Tourist ACR-I card" about 3 weeks later (waiting period for printing) at the local Bureau of Immigration (BI) office. So, after 81 days of uninterrupted stay this person would be in possession of this plastic card.
The only problem: This specific type of card is called "Tourist ACR-I card". Most banks refuse to open accounts on this type of card.
Even if you find a small bank who is opening you an account you will have a hard time maintaining it: They will
not open a foreign currency account on the basis of a tourist ACR card, the will
not even give you a debit card on a Peso-account anymore!
Then comes annual physical reporting with BI
https://immigration.gov.ph/services/alien-registration/annual-report-a-r at the turn of each year, annual renewal of the card and the bank asking you to every year present the newly issued card.
All in all very much impractical procedure for somebody who does not live in the country. And for most people it is useless anyway because on this card even the tiniest bank will refuse to open a separate FX (i.e. USD) account.
Even local electronic wallets like PayMaya and G-Cash have in the last couple of months become stricter and do not allow easy opening solely on the basis of this obscure "Tourist ACR-I-card". They demand a second Philippine ID now.
See the different types of ACR-I-cards who quite clearly show for what purpose they have been issued ->
Quite frankly, it is very good that Philippine banks have become strict and that BSP is now having a tight grip on the entire financial industry. After the
Bangladesh Bank Heist BSP they put a lot of effort in cleaning up the banking system and it really shows positive results.