Yes my thinking. Bob reminds me a bit of my NPA+ grandfather, who also served in the military (though via conscription) and held the assertiveness native to the job in disdain.

Looking into the show itself, you'll find Bob painted each work three times - the first serves as the model for the second, which is what the audience sees painted. The third is a further refined version, for use in his art books. A consistent system of production, with which he made several hundred artworks.

He's attracted a big following online, leading to stuff like stats about his painting subjects: https://fivethirtyeight.com/features/a-statistical-analysis-of-the-work-of-bob-ross/