Why would any other company other Mugen be the distributer....
If I was the business strategist it would only make sense to follow the products that mugen will be selling with other products that add value to the distributer and keep the company profitable for many years to come... Mugen has the new Ninja engine and it probably would help to establish the GRP line of products in the USA by allowing one company to sell all of them.... They have clothing apparel, bags, watches, tires and now engines.... As an established company I would imagine they would need to maintain a corporate standard and seperating their product line does not allow that..... Something to do with the vision and integrity of the company..
Just my thought......