I remember reading this article - and someone on here linked to it.
It strikes a chord for me as today I've been out to a meeting at which a lovely bloke, who seemed entirely nice and well-meaning, did exactly this sort of thing. He theorized about something I happen to know more about than him because I've been working on it for a bit more than twice as long as he has.
It fascinates me that (some. most?) men are socialized not to ask the polite question '... do you know about this?' or '... is this your book' (in the case of the women in the article). We are socialized that way. But they're also not socialized to realize that when they've been talking about their exciting new work, or their exciting experience, it is polite to ask what we have been doing or to see if we've got anything to contribute to the conversation, other than replies to them.
The bloke I spoke to talked to me very animatedly about how he's researching this particular area, and it's a fascinating area often dominated by women's studies research (I know this ), and it's based in such-and-such a historical context (it isn't: I know this because I work on that historical context and he doesn't).
Yet when I said this, quite tenatively, the response wasn't 'ah, you might have a point', it was 'you won't know this'. Because I, being four/five years ahead, couldn't possible know his area of expertise. In fact I'm not sure he'd taken on board I was five years further on than him, because he assumed he knew it all.
Sorry, I am a bit bitter but it feels like a tiny, minor, but irritating similar example to the article you linked! I will note that this guy assumed my DH (who is at the same stage as him) was knowledgeable and an authority ... so I do think it was gendered.