Nice to have a good debate!
By way as an addendum to my first post on this subject I made an error it wasn't Alan Richman on Man finds food it was Guy Fieri on Diners Drive-ins and Dives (also Anthony Bourdain on No Reservations) and the Kansas City BBQ joint detailed was Woodyard BBQ, have a Google or YouTube it
Lets think the theory through before dismissing it?
The bottom of the ribs is all bone no meat, that's a given. The top is where the meat and the fat is, again that's a given. The fat & juice permeates the meat to keep it tender yep. When smoking you put the bone side down (Myron Mixon) again yes. So where do the juices go as they exit the meat? Down (gravity) of course. What happens to any rub on the bottom of the rib, it comes off as it is all bone and cant hold when wet. That's why there is never any/much rub left (just a bit of colour) on the bone side.
As evidenced by the bark cap, the rub doesn't penetrate far into the meat, the smoke does a little hence the "smoke Ring". Therefore there is no rub "take up" throughout the meat especially from the bone side.
Now why do we foil??? to keep in the moisture. So what if keeping the membrane on, sealed in the juices and stopped them from leaking out? Are these Pitmasters knowing that there is no rub take up on the bone side using their savvy, removing the membrain after cooking?????. Remember they are feeding paying local customers that return day after day for the taste not one off for judges on how the rib looks, so maybe its about dollar Greenbacks and not Red Herrings, bit fishy that
And if we are quoting stats...........Woodyard has been in Kansas City since 1913 predominately selling specialty seasoned wood and bbqing on the side via their catering company since the 50's. But in 1995 they opened the restaurant mainly for ribs and it is now one of the top 5 bbq rib joints in KC. By comparison Myron Mixon was born in 1962 and started comps in 1996. Prefer Johnny Trigg for Ribs myself.
But I will let you know about them all first hand as I am going to Kansas city on a BBQ crawl and the American Royal in October