these are all fair points, but it's not like binding shims are some unknown, unproven technology - "you might be okay but you might die if you use this shim". people have been shimming bindings for years with CUTTING BOARDS from the dollar store for fuck's sake, and no one (to my knowledge) has died or been hurt from a shim job.
cool that moment is fixing this out of the gate though, again, props to them (and to melee) for responding here and fielding questions, etc.