your answer wasn't great, to be honest. and you missed MY point completely and focused on trying to be an internet crusader trying to rid the internet of snarkiness.
In that video he has to shoot at f/2.8, 1/60sec, and ISO 500 coupled with the fact that the shot is underexposed (purposefully or not--I'm going with not, based on his camera settings and final images). That's like the perfect argument against continuous lights. What happens when I want to shoot at f/11? (there's that damn question again) Those 30 lumens strip lights will be worthless.
If we turn on a room light, as you suggest, then the shot is completely ruined as you won't get that dark background. Plus that alone would probably overpower the strip lights in general and render them useless.
And buying more strip lights or bringing in more lamps is just mixing color temps and causes all sorts of other issues and sorta defeats the purpose.
As far as ISO, I shoot a D600 (one of Nikon's best low-light sensors) and wouldn't want to shoot portraits at ISO 1600, actually it would be closer to 12,500 since I'd want to shoot at f/8 or f/11. Even at f/11 on my 200mm most portraits aren't completely in focus--my avatar for example, was shot at f/8 and my ears aren't in focus.
That that doesn't even touch shooting at 1/60, so a tripod would be a must and you'd have to make sure your subject stays very still. Plus you want ever be able to freeze any sort of movement. Nor does it touch on them being hard to mount on your camera if you wanna shoot in any other situation; they just lack any versatility.
I absolutely agree that being able to see how the lights are lighting the subject in real time is great; I never disputed that, which was your point.
As someone pretending to be knowledgeable and after just running 3 circles around my cat, so my point of view is pretty damn valid--agree with it or not.