The shop I work in uses mostly mill rule which we utilize this trick and have named it a "Blind Tenon". It certainly does take a bit more time; however, a hand saw and chisel skill, makes quick and easy work of it. We use it at post to plate connections. And it seems to do a fine job of hiding the mortise and tenon (if one is into that). I have never seen how the joint looks after the wood has become stable.
