Are you a good writer if you can detect flaws in the writing of others?

I was reading a book yesterday that had an almost 5 out of 5 rating and it was written by a doctor.

I thought the writing style was disgustingly bad and did not know how they got into medical school cause if I was their English professor I would have given them a D for communication style.

One of the reasons it's taken me so long to launch my career is that I am a perfectionist, who refuses to write anything that a Harvard Professor would not give me an A+ grade for.

The reason I did not pursue graduate school further after my first several month attempt is that I refused to go to school unless I knew I could get perfect A's in every class.

Are you a good writer if you can detect flaws in the writing of others?
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