The thing is, it's all so subjective. This expert does not appreciate Cooper's logo and the minimalist/Bauhaus style in general. He admits that it has received critical acclaim, and clearly many people do appreciate it, undoubtedly some who are considered experts. Who is right? Who is the true expert, the professional? By what metric is that determined? Experts and critics constantly disagree with each other, often vehemently so. They have different values and different goals.

I would probably not pay for this person's opinion because I don't share his values. I like abstract and minimal. I would rather pay for the opinion of someone whose taste I share and/or whose work I admire (in the context of choosing a logo for my business. In general life I like to be exposed to opposing/different perspectives).

Basically I just wish people would generally act less as if they have a claim to what's right or good or truthful, on such subjective matters, because they are really just sharing an opinion. To this author, communicating the brand identity is an important feature of a logo. No matter how many people agree, nor how many textbooks it's written in, nor how much data shows it drives profitability and brand awareness - it still can't be used to say that a logo is objectively wrong or bad.