Not a new fad, just better methods of communication. Most of us only knew about moon names from our parents or the Farmer’s Almanac. Now they get names from everything from the Chinese zodiac to astrophysicists. You could call it rayleigh scattering but blood moon was coined before they understood what that was. It’s also called a flower moon in the farmer’s almanac because it arrived when flowers were blooming. When you see something like a Super Flower Blood Moon they are combining names.
Those are just folk names and were not in any sort of use 20 years ago. None of those names have any astronomical meaning that an astronomer would understand.
I think his Christianity has waned in America, people are searching for folk and Indian sounding things to latch onto.