It's in all likelihood an intellectual property issue. Remember, the deck's design was originally a Bee Diamond Back knock-off and the company the designer was working with was located in China, completely sheltered from US law. It's not impossible that the redesign is another piece of USPC IP in some manner, or that they just used the fact that they were working with a US company on the redesign as an excuse to pursue them legally somehow. Tomlinson probably had to dissolve all links with the Chinese company to shield himself from any liability - and is probably legally bound not to discuss the issue, either.
At least, that's my best guess.
