They lost an aircraft on which we fired. Its simple as that. Its seems to be an expended AMRAAM. Finding debris of it only shows that it was fired on something and Indians have lost 2 aircraft.
Had Pakistan lost an F-16 in AK, there are enough people with enough phones to provide some evidence of it crashing inside of Pakistan. To the gullible Indian public, remnants of a fired AAM are being presented as downing of an aircraft.
Keep one thing in mind. These operations are conducted with well planned strike packages. The ones that delivered the ordnance on the 6 Indian sites were strike platform (Mirages and potentially JF-17s). To provide top cover, the F-16s would have been employed with their AMRAAMs against Indian threats at stand-off ranges. The F-16s or even JF-17 at standoff ranges would not be employing WVRAAMs.
Pakistan has evidence on the ground, whereas the other side is scrounging for ideas. Best to leave this behind and move on.