That's a comment on the pathetic security at UK military bases, not the significant damage that specific attack did to UK defence .. Those refuelling planes were specifically located, targeted and their engines destroyed for a reason .. the method used is almost irrelevant.
Plane, not planes. I don't believe for a second that spraying paint on one plane out of a fleet of 14 caused any serious national security risk. It sounds more likely someone is trying to deflect attention from a very embarassing breach.
You don't distract attention from a security breach by headlining the security breach?
Modern armed forces bases are pathetically secured at the moment. For an ex-forces servicemen, it's really lamentable.