Devil,
I agree 110% with you on all matters in your post, however this pilot proved he had all the training/experience/information needed and proved again that experience without external pressure leads to correct decision making.
As you say "The answer isn't more outside the cockpit influence on pilot action, it's better training, support and information for the PIC to do the job."
The answer is LESS out of the cockpit influence, by both the flying customer and remote decision making dispatch.