I found both these comments bizarre. Firstly, nobody has suggested otherwise. Secondly, it’s entirely self-evident. So why bother stating it. Perhaps you believe you’re being called on to make a judgement, and since you can only do so with the information at hand, you state this to excuse any failure in judgement. In my view (and I’m very opinionated 
) the fallacy is to believe you needed to make a judgement at all.
Thanks for mentioning the Stewards. Good to know.