I actively say things similar to what you said. For example, if I’m ever asked why I want the job or why I’d be a good match at the company, I will always say I don’t know. I’ll always say I’m not trying to be facetious or dodge the question, but with limited information from a job listing, maybe a few phone calls, and a day of small 1-hour interviews (that are mostly made up of coding questions with no time for me to ask questions), then it’s just not possible to give a sincere answer that has any more depth than a rehearsed answer based on LinkedIn advice listicles or something.