It does in this case because it's the same problem in both systems.
He ascribed a problem to capitalism that is also a well-known problem of non-capitalism. The same thing happens in both places (actually worse under communism), so the blame is clearly misplaced.
False dichotomy much? The world isn't divided into some platonic form of "communism" and "capitalism." These are just labels we attach to a whole bunch of social and economic dynamics.
Names for colors or kinds of automobile are also just labels we attach to whole spectra of related things, but the words still have meaning and we are able to use them productively.
Responding to a comment like “this red color is agitating” with “you don’t get to complain about red unless you accept all the ways that yellow is bad” isn’t using terms productively.
He ascribed a problem to capitalism that is also a well-known problem of non-capitalism. The same thing happens in both places (actually worse under communism), so the blame is clearly misplaced.