Ultimately, the failure before, and very likely again, is not a Scouting issue.  What is a Scouting issue may be too many NOT paying attention or simply following the rules, no matter how they may feel personally.  IF the concern is not valid, then it will likely prove itself, but if it is valid, and it is ignored due to public opinion and personal friendships, then the failure is not on the back of Scouting.    

What would be more surprising is if we never had another YPT/SYT failure. 

This appears to be another that goes out at random rather than to every registered leader.

Took less than 10 minutes - 22/22. I would be surprised if anyone who paid attention to any version of YPT, never mind the update SYT, would have bombed.