It's probably a conclusion based on the number of Ludwig drums that were out there at the time. I don't see how the Supraphonic couldn't be the most-recorded snare drum, since it and the recording industry were booming at the same time.
I believe the Acrolite must hold some kind of record for the most ubiquitous snare drum ever made, since it was the drum included in most practice kits for school students. The seamless, Ludalloy shell was (and still IS, in my opinion) the best metal drum shell ever made. -not too ringy, not too dead....jussssst right for what a snare drum should be!