I think it's unique, and it's better than no footage at all.I'm not really digging this "unique angle" behind the band as it doesn't convey the atmosphere from the crowd apart from at the beginning and end of the song. During the song there's just a black mass beyond the front of the stage.
They do their shows with like 1 static drum cam, one action cam and one or two moving from the Photo trench. Blended with effects and artwork on the projection screen. They might have each cam recorded on a separate stream. Might. Would eat a ton of hard drives to do that each show. When they film for a blu ray they are going to need additional cameras.It might be unique, but the novelty is wearing off. They must have loads of footage and I'd prefer a full concert to be streamed than one song per week from a weird angle.