As I've said before
, "the only people who are usually better off shooting video on a large sensor, interchangeable lens, hybrid photo/video camera are folks on a scripted narrative feature (who have the time to setup, block, light, do multiple takes, etc.)" i.e. people who have the time to plan all of this out ahead of time and who also have the time to reshoot if something (e.g. focus) goes wrong during a take. Pretty much everyone else would be better off with a dedicated video camera, IMO."
From focus, to sound, to exposure flicker, etc. there are myriad reasons to use a dedicated video camera unless you absolutely need a certain look and you absolutely can't get it any other way than a large sensor, interchangeable lens, hybrid photo/video camera.
And keep in mind that I've been shooting video on these cameras since the GH1 came out in 2009, so if anything, you'd expect me to be biased toward these types of cameras.