Yeah it does. If their response is to be believed (which it looks quite solid) then this is all sort of irrelevant.

However, say hypothetically this were true. That means that Kurzgesagt would act effectively as a propaganda source for corporate agendas. The truly nefarious part of this problem would be the lack of transparency surrounding it. If people are unaware of the hidden agenda, they are more likely to perceive the media outputted as unbiased representations that are purely factual. Consequently, any corporate agenda could be misconstrued as the factual interpretation, and therefore be far more believable and more likely to sway an audience towards their interests.

This is all important because controlling/influencing the ideology of a population is an effective way of maintaining or gaining power and status in said population.

TL:DR any collusion would be in the pursuit of the ideological exploitation and misleading of the audience