but not frequency polar patterns what could be more important
The heat graph I posted is a frequency polar pattern graph.
Even the few frequency polar patterns I’ve seen with speakers rarely show anything in the back of the speaker
Note the graph legend on the left. It goes from 180 degrees at the top (backwards) to 0 in the center (straight forward) and to -180 degrees on the bottom (backwards again).
But the consumer market is not the professional market. I doubt any consumer speaker manufacturer supplies a heat graph like the one I posted. They seem to try their hardest to supply as little information as possible. That graph is from an independent review site.
Compare that to literature from a professional speaker manufacturer: