The numbering system merely hastened the demise by further making sure that any sensible interested committer would first check to see what was going on with the latest branch, discover it was the same godawful non-navigable incompetent mess of splintered crazy version wreckage floating abandoned on a lake of ennui that you can trivially see before you today, and run like fuck in the opposite direction.
The principal problem with perl today is that it still exists, and that last tenuous skeleton crew of 2-3 smart people who still struggle in vain to breathe life into its long dessicated corpse is still capering about claiming that there's still! some! path! to! relevance!, rather than doing the noble thing and finding employ as dishwashers or carpet cleaning fluid salesmen.