FOG..or pea souper by the look of the patronising 'logic'
The PCN/ACN issue is not an issue as they're already known for all airports the the RFP asked for - you don't have to muck about drilling samples and ground prep' for taxiway extensions ect, and there aren't many - if any- airports that the KC-767 can operate to that the KC-45 cant.
Even if for the few cases it was prohibative, the alternatives for diverting are far higher with the airbus than with the frankentanker. Take a look at the KC-10's operating parameters
The KC-30/45 take off with load performance is the critical issue - runway length, performance and operating flexibility are the criteria
as for mortars...no idea, it's not in the RFP