I think it’s really important to point out that Carruthers has not been arrested. He was detained, which is a rather big distinction.
It’s easy to jump to the conclusion that this was politically motivated, however, this has not been made known to be fact. This may very well have been a random situation, having nothing to do with online gaming.
Regardless, Carruthers is one of the brightest minds of this industry and it’s a no-brainer that he will use this situation to call further mainstream media attention to what is happening in the US.