Well they are partially right that the short ranges (by todays standards) over Korea are going to somewhat limit the use of AMRAAM medium range missiles. A medium range missile is only so useful and US pilots ARE trained to fight in knife fights...

most training sessions at Cold Lake and other sessions emphasize dogfighting tactics in jet fighters rather than long range missile duels....inevitably a medium range missile is the first stage of the engagement followed by short range missiles and then guns.
What will really alter the balance of power I think is the introduction of the AIM-9X as standard on all US fighters. Similar to the AA-11 Archer (I think its R-57 Russian desgination?) it has a thrust vectored engine system and its target designator can be slaved to the pilots helmet. So...even in a knife fight with a MiG-21 a US fighter equipped with this technology can use missiles at oblique angles that NK missiles (as far as I know they don't possess AA-11's) wouldn't even have a chance of locking on.
Not to mention the F-15's reputation of 101 to 0 kills to losses (although I suspect

of that has to do with pilot training and the conditions that the F-15 is in - the unspoiled rep would probably be degraded in a significant conflict).
The other element is that a number of F-14 squadrons have been phased out. The F/A-18E is in as fleet defender and much more manuverable, smaller, and stealthier than the veteran F-14 Tomcat.
So its only worth some of what its saying
