I'm sorry but I'm having a hard time understanding why a person bringing up a tool in conversation during an interview is seen as such a clear and strong signal

I'm sorry but I'm having a hard time understanding why a person bringing up a tool in conversation during an interview is seen as such a clear and strong signal containing so much information about their professional performance. But nowadays it seems like one has to 'turn on' an interviewer and avoid a minefield of forbidden words to get a job. If a workplace is to become a toxic cult-like environment being policed against such thoughtcrimes as being curious and interested in technology for its own sake I think one would be fortunate to be passed on after an interview to enter such a place.