I would not view that in a negative light. Having read much of his writings, he was a very straight forward, down to earth type man and did not sensationalize things. He simply wrote about his observations and experiences as he observed them though his own findings. If someone fired him because (purely speculation on my part) he was not willing to hype something, or state things in a magazine article that were different than what he had personally observed, then he has even more of my respect.
He was a class act, and we could use more writers like him these days, instead of the infomercial type stuff that is typically written today by the majority of writers.