Arguably, maybe, but it is at least an equally valid interpretation (if not more so) that the perceived shame is their experience, not ours.
Is it really envisaged here that the redeemed will spend the whole of eternity feeling the shame and contempt of/for the lost? Emotions that more properly belong to the offenders than those offended against?
It's a clever argument to avoid its obvious meaning, but that's all it is.