They are correct, but not for the reasons they give, which are rooted in Western culture and which show little understanding of the Chinese approach to seeking harmony in outcomes. And it is not just business that suffers from this poor understanding. Discussion at higher political levels between Chinese and Western leaders suffers from the same distortions of understanding.
Looking down at a public park from the 18th floor of my hotel, I can immediately determine the country I am in. If I am in the West, then the paths through the park are all laid out in straight lines. If I am in China, the paths twist and turn across the park.
Cynics might say that the twisting and turning is a metaphor for the frustration they feel with negotiations in China.
