They ignored the point that capitalism uses violent oppression to suppress innovation. Kind of a main point of the video. The evidence that other ideological regimes cannot innovate is always implicitly that capitalists won by military might therefore the interlocutor is compelled to concede a flawed premise from the outset.

It's like smashing the sportsball net then saying you won the game. Especially if one were to come from a scientific perspective that is not a proper comparison of technological innovation when you ensure nobody else can even try.

Show us a world were different regimes compete scientific and technologically without resorting to violence against the others. We couldn't have it because capitalists sabotage your science experiment, take your equipment, then declare themselves the winner.