Point B: a criticism by someone who loves the language was presented, to show that claim was false.

Point B does not contradict point A at all. That is like saying that is false I cannot accept criticism because , hey, look at the weak points I have and I gladly mention("I am too perfectionist","I work too hard", "I put the wellness of the company ahead of myself")

But that was OP's point.If your best example of Rust lovers accepting criticism of the language is the existence of a critical article written by a Rust lover, that does no say anything. The bar is naively high if the best example you got of tolerance to criticism was a critical article made by a member of the "tribe". The implicit point is that those kind of articles will be the ones playing "soft ball" with the language,so any perceived tolerance to criticism is almost meaningless.