This is why arguments justifying censorship by saying "just host it yourself then" are wrong. Whenever you take over one level in the stack, the next level down will just censor you instead.
KF can still have their servers and have the site running on then.. They can also go out and install cables connecting their servers to other people for then to access it if they want.. They are allowed to implement their own parallel stack on the side and have 100% control over it as long as they can afford it..
What is happening is that in order to cut those costs they need to use the existing stack and have other companies grab the content from their servers and deliver to other people screens, but other people do not want KF content in their network in any way.. something entirely in their right..
In the end of the day, if they went all the way up the stack and still cannot find a single other company in the whole world willing to work with them it honestly say more about them then it say about the world..