That still doesn't solve the prerequisites being exceedingly rare in most teams. A system solving an issue under rare circumstances is barely worth considering, doubly so if it doesn't solve the issue in your specific circumstance. That's, again, disregarding that the modus operandi of most management teams directly interferes with planning poker itself (high turnover, high focus on increasing scope and scope per person).

Or we can dive into technicalities where it technically does solve the issue but does it poorly, and just happens to be better than any other system we know (also questionable).