As someone who does a good bit of public speaking as part of my job it isn’t easy for most people and practice always leads to improvement. I can’t imagine I would be impressive on the phone on the radio especially having not done it before. Little delays can add to awkwardness.
I noticed more and more people using “right” as a verbal crutch since the dawning of podcasts. People making more extended points but pausing to make sure the audience is following then it becomes habit. I think it has seeped into the common vernacular.