Yeah, those look like they're coming off of the front edge of the saucer to me. I excpect that top image of that second run is from that same area, but the others are certainly from the lower dome.
So, how do we feel about forward rim phasers? It wouldn't have occurred to me, but I suppose I don't have any specific objection to them...
It doesn't bother me too much since I consider TOS-R it's own continuity (ditto for all the other series)
But I am a little surprised of the new location. I doubt that it was a mistake unless they rendered the phaser beams as a separate render pass and composited it incorrectly.