Well, no, not python's fault -- clearly the distros', and they probably should be blamed. But a PEP saying python2 and python3 should invoke the correct interpreter would help motivate the distributions.

(This is isomorphic to the usual victim-blaming discussion. Fault and blame vs some ability to make a difference; it's a shame that correctly pointing out a better strategy is both used to attack victims and attacked for attacking victims in the cases when that wasn't intended.)