We know that it's possible for a high fat, low carb diet to facilitate the loss of body fat because there are tons of testimonials from people who have gotten quite lean doing it. We also see quite a lot of people who've encountered a body weight plateau. Though I'm not particularly fond of HF/LC, I wonder if the fat loss stalls are because people are increasing their intake of long-chain fatty acids that just get dumped into adipocytes instead of medium-chain fatty acids (which may never get stored in adipocytes, but I'm not certain of that). The difference between coconut/palm fat (Which is something like 2/3rds MCTs) and bacon fat is significant in terms of metabolic rate and thermogenesis.
Instead of focusing on the degree to which a fat is saturated, perhaps we ought to focus on the chain length. I'm fairly certain that excess stearic acid is treated the same as excess linoleic acid and just gets stored as body fat.
I wonder if those who are stalling out would benefit from simply shifting a lot of their fat intake toward coconut oil or solid coconut. I would test it out myself but I don't eat HF/LC and I'm allergic to coconut.