Logical error in your metaphor.
Accurately expressed, this would be "Would you respect the word of a baker on how to best be the micro organism that fucks up his bread?"
And the answer is, you wouldn't.
Your metaphor is confused and esoteric.
"I, as a professional "X" am not allowed to be considered knowledgeable on what counters "X"."
This makes no sense.
[edit]
Or an even simpler explanation.
I play Rock, Paper, Scissors.
I always throw Rock.
I always beat Scissors.
I always lose to Paper.
Based on what you have just read, Am I knowledgeable in not only what Rock can do, but what Rock is vulnerable to?