I think the same thing and I've read and studied about it for a long time,
plus have been trimming my 3 club footed horses myself for several years now.
I know they do better with more frequent trimming to not let the hooves
get out of balance; that clubby heel always grows faster because they don't put
as much pressure on it when they're standing around. It's kind of like the
"which came first-the chicken or the egg" theory.