. . . BM is deliberately allowing his head and upper torso to rotate as far as possible to the right (head is outside his inner right foot) . . .
This is called a "Sway", Jeff.
A Sway.
It robs the Pivot Motion of its Center; disrupts the ideal Centered Arc of the Clubhead; and deserves well its exalted status as the 4th Snare (3-F-7-D). Absent its necessary Center, the Pivot fails to maintain its essential geometric alignments and is thus "only superficially correct" (7-12).
Hang in there, Kevin. You're on the right track. Study 1-L #1 and #2. Be extremely skeptical of novel ideas -- from whatever pulpit preached -- that don't square with these axioms.