GRAFT is to the other payment apps as VISA/MC is to them - it's rails. Payments may start with a simple closed loop system for experimentation, then move on to payment gateways attached to exchanges, but once they get up to any kind of scale, the need for ubiquity, flexibility, and markets should push them to more flexible networks like what GRAFT is doing.
And yes, GRAFT is looking to get Stripe, Stripe, Paypal, and others to use the network facilitating digital currency payments. Stripe tried supporting crypto and backed out for the time being citing inability to deal with confirmation delays and network fees, which is the problem that GRAFT could solve for them.
As for large businesses storing their proceeds in bitcoin - probably not - they are however are a lot more likely to store the proceeds in government backed or independent fiat tether coin, which is a model that GRAFT can easily support given n:n nature.
Thank you very much for the response. I understand that there is a team working very hard to fulfill a vision & that everything is being thought out and considered for perfect results. There is some error and short hand in the wording of your responses here, that while I know that it serves a purpose, it continues to worry me as much as I am sure that it worries the community. I would like to see GRAFT succeed very much.