Surprising

The SFC article frames this as "imposing additional restrictions". But it seems to me it is one thing to impose restrictions on the use and distribution of the code and another to impose restrictions on connecting to your servers and using them. The latter right has nothing to do with copyright, presumably would not exist in software someone independently developed. To me it sounds in principle as separate as, say, the right to manufacture firearms and the right to go to a specific shooting range to use them. Or the right to build your own modified version of a popular browser and the right to market it as Firefox.