I took a look at some of the Roku forums, and there is a little more to the story. First, private developers will still be allowed to provide international programming, it will take permission to do so. I see reported that one person has already received permission to provide such.
Second, it now sounds like Roku almost had to do something like this. Apparently there was too much non-authorized international programming being streamed on Roku. I have to admit, I wondered how EuroNews, which does not allow the English language version on the internet in the U.S., was being streamed on Roku. It still stinks for those of us who routinely watch international programming, but maybe it was not going to last as is anyway.
One such link;
Roku Forums • View topic - International Channels now useless for many of us...