What's funny is in the article they are saying "many of the Bitcoin payment service providers, are bound by their agreements to Visa and MasterCard", in reality though you don't need a payment provider to send bitcoin to anyone and to top that off - the use case we're looking at here which is "donations" is perfectly fitted for bitcoin, you just provide your address on your site for ppl to send coin to and you're done.

Where bitcoin payment providers come into play is when a company is taking bitcoin as a method of payment for their goods and services which is not the case here.