sorry, i just wanna reply because i'm confused =/
From my perspective, the M3 Lite does not stick out at all in those pics. u can get REALLY picky and say that the edge doesn't 'curve' and align properly with the DS Lite exactly like the dust cover.. but it is practically still flush...
if anything - it only looks like it sticks out because the M3 lite doesn't have the clear plastic over its edge...
When I initially saw the pictures, I didn't think that the M3Lite was sticking out, I just saw the clear plastic to the right of the cart. As I heard people saying it was sticking out, I thought I was wrong and what I thought was the DS' clear plastic was actually a shadow.
Now I change my mind again and I agree with you, it looks perfectly flat in that video. Also, when I put the GBA cover into my DS Lite, it looks the same as the M3 Lite from that angle.
but i don't see people really slamming the SCL....