I also have researched requirements for becoming a licensed money transmitter, while considering starting a payments solution. From looking over your website and your company's topic in Quora, you are clearly more educated in this than I am.
However, from what I know, I believe that you are mischaracterizing the law. Perhaps this is because you feel that you have been victimized by a bureaucratic process. If what you say here and elsewhere is true, I think that it should have been possible to reach a solution that both satisfies the law and allows you to continue doing business.
It's very surprising that, in so many places across the web, you have been unable or unwilling to vocalize the possibility that the law has a legitimate intent. Even the language you use to describe your company's lack of presence in CA is misleading:
The California Money Transmission Act has forced this merchant to stop accepting FaceCash payments. You can still pay with other payment methods.
No. You have decided not to comply with the law because you object to its passing, to the entities you perceive to be backing the law, to its constitutionality, and to its implementation.
As evidenced by the fact that other startups do tackle the payments space, and will in the future, we can conclude that the situation has more to do with you than with the Act.