People in that thread were alleging that EEP 20 would create serious overheads in cases where it couldn’t possibly create any. If that’s not spreading FUD, what is?
Obviously there are new ideas. The first time I held an iPad in my hands, I had the idea of using the built-in camera to measure pulse and blood oxygen. That was about 12 years ago. Nobody could have had that idea until they first had the idea of a hand-held device with a built-in camera to have it about. This year I keep getting ads on my phone for a phone app which does exactly what I thought of 12 years ago. Once the context for an idea exists, people keep on having that idea.
And so until the atom table overflow problem is actually FIXED, the BEAM community will keep on seeing discussions about workarounds.