This is not the first time loss of comm and fighter jet intercept.
I have a feeling in post MH370 world supersonic intercept will be a norm if plane heading out to open seas, assuming country has quick/rapid action force and mid-air refueling capabilities. If I recall similar incident happened over France last year.
Even though MH370 presumed to crisscross the nation and almost over an airbase, they couldn't intercept because it had very few active all weather, mid air refuel capable fighter jets, and they were on the other side of the country.
Why so much media coverage. Contemplating between Brexit preparedness (or) Gripen vs Typhoon marketing.