I don't ask challenging questions in interviews because I know I won't get hired if I ask them.
Anecdotally, I once confronted a director about negative Glassdoor reviews which claimed the company's CEO was a serial abuser of employees. I did so in a friendly/appropriately phrased way, so it didn't come across like confrontation, but that's what it was. Not only did I still get an offer, but they tried to hire me again several months later.
A company that got mad at me for asking reasonable questions about it in an interview isn't one I'd want to work for.