In all photos but that above point 4, the ET has a reddish-looking thing near the bottom of the picture. The highlighting does not occur in this area.
In the picture above point 4, where the highlighter does cover that area, the previously reddish-looking thing is now white, yet the plume does not appear to have extended far enough to have produced that white color.
I'm neither disputing nor defending the tile theory because I simply don't understand enough science to argue for one or the other. I'm just pointing out what I see :)