David Omand is not a coward...
It cannot be said that David Omand is a coward. Being chief of GCHQ (comparable to NSA) and therefor responsible for withholding known security holes to the software manufacturer, he is absolutely not in the position to point his finger to MS.
I would rather go a step further: he (his organization) facilitated that the real responsible guys (the criminals using the vulnerabilities) could commit their crimes.
Besides that: MS had made it possible to get security patches when you pay for it. This very much looks like real life: you get what you pay for.