The whole trademark issue is a weird one. I can understand wanting to distinguish organisations from one another but trademarking a style and it's logo is a very strange thing. Even more so when that style itself has parent styles.
I wonder what would have been of Kyokushin if Funakoshi had decided to trademark Shotokan Karate and Miyagi had decided to trademark Goju ryu. Where does it stop? What if someone has the idea to trademark kata next?
As for the Isami issue - it happened a while back. I think the trademark issue is starting to come into effect over in Japan after the legal issues were settled a few years back.
I'm not so sure there internet business will suffer all that greatly to be honest - they might feel it a little for sure. For the last decade Isami have made a concerted effort with expanding the products they sell. There Karate uniforms are renowned worldwide and so are there BJJ Uniforms and general gear. If this happened 10 years ago - they would have been in a shit show.
Not sure it will spread outside of Japan - as the trademark issues are only applicable in Japan. Trademarks outside of Japan are owned by an array of people.
This is sad news, but expected I guess. I have a bunch of Isami dogi. The fit and feel are what I've grown used to. They exemplify quality dogi, for me. I also have one Ichigeki dogi- sold by IKO1. This is my least favorite dogi. I like the embroidery, but the fit and feel are not to my liking.