/cgl/ - Cosplay & EGL

Would you consider this a(n attempt at a) flat-felled seam? They obviously tried to replicate the look from the outside, but surgery with a seam ripper shows that the fabric panels don't interlock. It looks like they folded, pressed, and stitched each panel separately along the seam line, placed the fabric panels, then carefully topstitched. Would this have any effect on the strength of the seam? Even though there's no stitch going through all layers simultaneously there will at least be 2 lines of stitching along the seam.

I'm writing a review of a product and I don't know whether I should praise or criticize this feature.