Correct, and that inner hole is in the gauge cluster which is screwed to the bezel
Also correct
So I just went and checked my 70 bezel. It seems everyone is correct, the holes on the bezel(except for the far right hole) do NOT capture the screw head, it contacts the instrument cluster below it which is screwed to the bezel, then into the clip in the dash frame. So yes, the screw will fall right through the bezel hole, thats normal, but if it falls through even with the cluster attached, then the holes in the cluster below it have been enlarged for some reason, and then I would do what @WymanV recommended, filling the holes completely, then drilling them out just enough for the screw body to pass through it.