We obviously know that there are many variables here. But that wear is definitely excessive. The additional clearance added by the bad rod bearing could have caused a severe oiling issue on that cylinder, resulting in that skirt damage.
I've also seen this in extreme high horsepower cars where the rear two cylinders get a lot warmer than the front 6 cylinders, resulting in piston growth, but I don't think that was the case here.
PBM G8 GXP M6-Self flex fuel tune,OBX LTs, Kooks A/B, Monster clutch, 3.45 gear,LSA S/C, cam, fuel system, stock block and stock heads, 12 PSI.
Best e.t 10.41/ best mph 138.7 Half Mile: 168.3 mph
2007 TBSS-Self tune, bolt ons [email protected], 1,560 D.A
1991 GMC Syclone- Self tune/catback [email protected], 4,200ft D.A