Kevin, I agree. I've asked at several rib joints in Chicago and this was the response I got.
In the restaurant business time is money. The owners / managers feel that the time removing membranes is wasted time. Doing a couple of slabs is no problem but when you have to peel 50 or more slabs it equates into wasted time. They feel that during cooking the membrane becomes soft and easily bitten through.
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by K Kruger:
Sure, I'll comment: Leaving the membrane on is lazy.
Though the membrane could be thought of as a bit of a barrier, its presence hardly 'seals in juices'. There are other areas of egress. (The great myth of barbecue and grilling is that anything seals in juices.)
Overcooking is what makes ribs dry, the presence or lack of a 'seal' notwithstanding. Cooking till done--and not further--is what results in a moist, tender finish, also notwithstanding the presence or lack of a 'seal'.
Little irritates me more than ordering ribs at a joint and getting membrane-on ribs served to me. The lack of attention is galling. </div></BLOCKQUOTE>