To be fair in the first picture the gap at the top looks ok but the side looks a little wide. Without knowing the measurements of frame and door it's again hard to comment. He could have taken too much off or the frame could be wider than the door , a situation i've found myself at times. The situation with regards to the other photos look to me as if they just need a few strokes with a handplane to straighten the door edge. I tend to use a jack plane for most of the final planing only using an electric if there is a lot to come off.
Dewalt couldn't the doors be doors be painted in the same mahogany stain the frames are in
