One of the Square folks revised their statement on twatter yesterday after the initial news hit and said it isn't available for all just yet. It's possible they were in that group.

Square’s Bitcoin integration is still clunky—most merchants don’t realize it’s buried under “Other Payments” and requires manual price locking. Adoption friction like this is why I’ve been tracking ETF flows as a cleaner on-ramp; this piece breaks down long-term price pressure scenario...