Oh look, a publisher allowed someone to blog on their website trashing a product sold by one of their competitors. That's shocking.
I am not into who publishes what in the US/UK etc, but if what you imply seem to be the case, then it is not shocking at all 
Indeed, it is quite predictable.

Was just highlighting some of the criticism against his books.
I am sorry if I came off as aggressive towards you, I just find the unspoken commercial context of that review so blatant.