No one should criticize experimentation in a sport like ours. Some of us take lazy Q to mean no clean up, like scrubbing the bottom of the smoker under the foil, which always collects grease.
You're right, Dave; that's why I said we need to wait for the reviews of this new technique. I, personally, believe you'll have the same results. Why? Because moisture and grease collects on the sides of the smoker, and runs down to the floor. Unless you create a seal, between the foil/lids, with the
sides of the smoker, you will always have moisture/grease get under the bottom liner. If I have to clean the bottom anyways, I'm going with the easiest solution to catch the bulk of the drippings. That may be foil, or it may be the aluminum pan lids...jury is still out!