Except if you understand what the command economy is then you must understand this:

A state-capitalist country is one where the government controls the economy and essentially acts as a single huge corporation, extracting surplus value from the workforce in order to invest it in further production.[3] This designation applies regardless of the political aims of the state, even if the state is nominally socialist.[4] Some scholars argue that the economy of the Soviet Union and of the Eastern Bloc countries modeled after it, including Maoist China, were state capitalist systems, and Eastern and Western commentators alike assert that the current economies of China and Singapore also constitute a mixture of state-capitalism with private capitalism.[5][6][7][8][9]

https://en.wikipedia.org/wiki/State_capitalism

They wanted to export it to the west where they did not distributors. There was no demand economy in the west.

I see in your other comment that:

based on the article the issue was the state taking a defensive measure for the glassworks industry

That is very much not in the article. Nowhere does it mention the state taking any measures.
What the article fails to point out that the glassware industry who's profits were jeopardized was the western one. The profit oriented one.

Also please note that East Germany was more than just East Berlin.