That said, it might confuse people who've driven cars with shifter stalks, but those haven't been on the market in something like 40 years and haven't been common for at least 30
"Not common for at least 30 years?" Pretty much every truck uses column shift if it has an automatic. My first new vehicle out of college was an '02 S-10; it was a column-shift automatic. So were all of the U-Hauls I've ever driven, ranging from 10' to 26'.