1. There's a lot more to ML than just RAW recording. There are many benefits and features useful for regular old stock h.264 recording (like: magic zoom, various scopes, focus peaking, FPS override, etc.), there are also many still photo related features (intervalometer, bulb timer, AutoETTR, Dual-ISO, silent pictures, advanced bracketing, various usability tweaks, etc.).
2. This forum, like most forums, is largely made up of posts from people who experience some sort of issue (typically because they don't read or follow instructions properly). The people who use ML and never have any issues, likely never post, so you don't really see a fair picture.
3. I have tried to make the raw video post processing as seemless as possible with
MLVFS