What happened to Greek names for variants?

What was the point of giving SARS-CoV-2 variants names from the Greek alphabet (Delta, Omicron, etc.) if all the sub-variants of Omicron are given unusable names like BA.2.86 and JN.1? Surely, the alphabetic names helped us communicate about the virus and take its mutations seriously. That seems almost impossible now, even on an entirely practical level, above and beyond the misinformation and politics surrounding COVID.

#Communication