Must?
These measures will, of course, be different in different countries
Also note this part:
Of course, in the beginning, this cannot be effected except by means of despotic inroads on the rights of property, and on the conditions of bourgeois production...
Notice, "in the beginning." Is China socialist or not? It is not the begining. The need to control the means of communication, as well as most of the rest of the goals, is to gain power over the bourgeoisie and place the power into the hands of the people. The means of communication must be seized in order to empower the people to communicate without their interference. How is the control that China has over communication providing for that and not the bourgeoisie itself controlling the media to prevent the people from communicating?