I disagree.
The military's immediate reaction was to indicate that there were problems with security and armor on the vehicles being used. Additionally, the brass called a safety standdown to inspect all vehicles.
Something MUST have turned up in that or there would be a court-martial.
Article 15 is not a walk in a park. It ruins a career to have those in your record....especially for an NCO. They will never go higher unless they challenge it and get it expunged.
If any have successful challenges, then you can bet that something turned up in the standdown.
IIRC there was a several hour "discusion" between EM and either NCOs or officers over whether or not to complete this mission. This says to me that there alrady was a breakdown in leadership in this unit. Either at the NCO or Officer level.