Wiley,
how in the world could an aircraft that it .2 of a mile off track on an airway be infringing military airspace?
Only through very poor design of Military Airspace boundaries vs. Routes.
We have a fairly crappy one out of BN - admittedly it's Radar so not really a problem, but have a look at the IBUNA track (BN R-286) vs. the AM Military area.
As far as the non-radar areas are concerned, I agree the .2nm should never cause a real problem. (In the world of common sense).