The one and only piston-powered airplane I've taken into a deep pre-buy inspection had a wrecked muffler core. My sample size is one, so did I "win" the lotter

The one and only piston-powered airplane I've taken into a deep pre-buy inspection had a wrecked muffler core. My sample size is one, so did I "win" the lottery? I have no particular reason to believe this aircraft is especially noteworthy for its airworthiness or level of care.