If the piston skirt is hitting the bore wall, it obviously isn't a good thing

GM had massive issues from 99-2003( at least) because they cheaped out and started assembling engines( 4.8/5.3/6.0) in batch mode. They got all engines bored the same, used all same pistons, and just assumed every engine would end up with identical clearances, instead of checking/ building on a case by case, each engine is unique format, like they had previously.

Piston slap greatly effects the resale value of a vehicle that has this issue.
Given owners who have sued GM over this issue have either forced GM to buy back the unit, or offer a cash settlement.
GM didn't do this because the engines were " right"
I suspect people that have this issue have to like it, because the alternative is to tear the engine down and fix it so it's right