FWIW, although I may not agree with all that was written, I thought it an interesting and thought provoking article, regardless of the author's lack of credentials. Some thoughts:
Although state of the art technology provides immense BVR capabilities, there can be a tendency of overreliance on it. While stealth and all-aspect, launch-and-leave tactics work well within a set-up, sterile training environment; actual air combat with a similar and opposing strike force muddies the waters, especially when over advanced enemy terrain and not a Warning or Restricted area.
As is oft said, the first casualty of war is the plan. Consider the strike fighter flying over enemy territory. The opposing enemy fighters may not be at the convenient 50-mile head on set-up. Indeed they can be all around you, and possibly in large numbers. Or launched from a field behind you. Or some as decoys.
Meanwhile trying to employ your BVR weapon system – if you aren’t already surrounded by enemy fighters WVR – at a distance target, while being interrupted by multiple SAM launches at your aircraft and having to counter, is a tall order. Furthermore your BVR missiles can be defeated. Indeed I have personally defeated quite a number of Mach III+ SAMS with multiple countermeasures and maneuvers. So numbers of missiles can be a large factor above and beyond their advanced technology and capability. Same can be said for numbers of fighters.
It was said that BVR missile firing was not allowed in Vietnam. While generally true, this was however not always the case. In fact I once was given a “cleared to fire” from Red Crown on a bogie we had locked up at 20 miles. Fortunately I held my fire to sweeten the shot and put the now confirmed bandit in the heart of the missile envelope… when I noticed he was smoking. Couldn't see the aircraft but could see smoke. MiGs did not smoke. With Master Arm red lights on, had I then fired on that confirmed enemy BVR, I would have downed a pilot from my sister squadron. With lots of aircraft, friend and foe buzzing around, the effectiveness of BVR is reduced and confusion begins, even with outside AWACS help.