I'm from the U.S., and I was quite surprised to see no mention of RCA in the article. Presumably, the American mentioned who procured U.S. rights ended up associated with RCA, as that company used Nipper's picture and the phrase "His master's voice" as a logo for decades.
I must admit I didn't follow the idea that selling Japanese and American rights at the turn of the century resulted in obliteration of the British trademark when CDs came into being. I don't see how that should have an effect.
Assuming this story is true, it's interesting and has a lot of info I never knew. But from my perspective, the above points present gaping holes that puzzle me.