If the only look into a company is that tech interview, and he or she will be someone you will have to work with on a day to day basis, and s/he is someone that just flat out refuses to accept that maybe his answer isn't the right one, would you want to work with someone like this 8 hours a day?
To be fair, I might have been that guy 10 years ago, and I was probably quite an annoying know it all co-worker then, but now, after close to 20 years in the industry, having worked in software that is used by millions, being a referenced author, honestly, no, I refuse outright to deal with bullshit like this. I don't expect everyone to think what I say is right (because it isn't) but to just dismiss it since it isn't THEIR answer, is a RED flag for me and I would prefer not to work there, no matter the offer.
To be fair, I might have been that guy 10 years ago, and I was probably quite an annoying know it all co-worker then, but now, after close to 20 years in the industry, having worked in software that is used by millions, being a referenced author, honestly, no, I refuse outright to deal with bullshit like this. I don't expect everyone to think what I say is right (because it isn't) but to just dismiss it since it isn't THEIR answer, is a RED flag for me and I would prefer not to work there, no matter the offer.