Aluminess makes a dual swing out rear bumper as well. I don't think it looks nearly as good as the Expo1 bumper but it is certainly not the only option at the moment.
The point is that you don't release a product before you have worked those issues out, tough **** that the industry is growing and everyone wants a piece, do things correctly and make good on your offering from the start. You certainly don't avoid the issues when confronted about them or offer less than ideal, rudimentary fixes for your mistakes that must be undertaken by the end user themselves with no offer to refund even partially the faulty product.