The fact is Montecore created a scene about Fight Club having a hacker by the name of Mrs DD. When the hacker was booted from FC then Montecore couldn't recruit them fast enough.
Montecore was told beforehand that this would happen if this person was recruited so the blame can only be placed on SAS 1 leaders, officers and Montecore himself.
Whilst what happened was a bad thing, instead of pointing fingers Montecore should be taking a good look at himself.