I'm not going to pretend I'm great at reading social situations, but I think your approach in this story would have annoyed 99% of interviewers, even if they genuinely valued directness. If they'd asked for feedback on the interview process, then sure, they'd be a hypocrite if they claimed to value directness but got mad when you told them honestly that you were bothered by their lateness. But when they ask for questions, they're not inviting criticism, and framing the criticism as a question is always going to come across as passive aggressive. (edit: Or maybe 'snarky' is a better word here, as you did follow it up with a direct criticism, so 'passive aggressive' might not be quite right.)

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tombert 8 hours ago | parent [-]

Being annoyed is fine but I would argue that they should deal with it if they’re going to make me waste half the interview time sitting around.

I’ll admit to a bit of douchiness on my end but I think they should have understood the snarkiness in this situation if they value directness.

	▲	retsibsi 5 hours ago \| parent [-]
		Fair enough. I wasn't there and this probably depends a lot on your tone and general vibe, the dynamic between you and the interviewer up until then, and so on. I do think it's almost always a risky move, but I think I assumed too much and I apologise for that.