Since a lot of interviewers conducted interviews from their homes during the pandemic, I am not sure just being able to see a person would provide enough assurance.
When we conversed about non-technical things, the interviewee spoke clearly and fluently. But when we'd ask a targeted technical follow-up to something on their resume, they would always repeat the question slowly, and then robotically with several pauses say their answer back. Another interviewer said they could hear the voice in the earpiece talking in between their pauses.
I'm not sure what their end goal was with getting hired, but we ended up cutting the panel short.