Stable, it would be nice if it was so simple to change an SOP. Unfortunately, this usually involves changing the ideas of a training organisation which is not easy because of all the vested interests involved. Then, if you succeed with the training organisation they normally need to get changes in SOP's approved by their government regulatory organisation. All in all, this is not as simple a matter as you suggest. I can vouch for this from personal experience.
SOPs have become the academic substitute for what used to be called AIRMANSHIP. Do you remember that subject? Unfortunately, airmanship is very difficult to teach because it usually involves on the job training from an experienced instructor. The substitute for airmanship is SOPs because these can be printed in a book and taught by any "know-nothing" ground school instructor. The theory is that if you provide enough conservative SOPs and make people obey them all the time then people will never get themselves into trouble. Therefore you do not need to teach them how to get out of trouble. This simplifies training and saves money.
As we well know, as soon as a pilot leaves the gate he is operating in a dynamic area where the SOPs often times do not fit perfectly. At that point it is the pilot's experience that resolves the discrepencies to ensure the safest and most cost effective operation. Most of the time these slight deviations from SOP never even get noticed because both pilots agree that what is being done is sensible under the circumstances. Surely, you don't really think that the incident under discussion is the only time an event of this type has taken place over the last year!
The SOP is the skeleton to which experience and knowledge adds the flesh. Both are necessary for a properly functioning body. The final comment might be the old saying "Rules are for the guidance of wise men and the blind obedience of fools".