That's not really the idea that I'm repulsed by. I'm repulsed by the bizarre notion that music format eras should mention a political leader for any reason. It's like saying records really started declining after Nixon (or whenever/whoever is most appropriate, I'm not sure of the timing). It isn't necessarily incorrect, it's just categorically wrong to bring that information into the same thought.
I first thought of the Japanese custom of naming time periods after Emperors.
Spotify launched in 2008. I signed up for an account in 2009. Since then I have bought physical/downloadable music only a handful of times.
I am an avid podcast listener which occupies a chunk of my phone hard drive most days.