It took me a while to figure out what he was talking about as well. I think he's referring to what I have circled in red below:
Alden's model only has decorative stitching in that area, while the comparable Allen Edmonds has an additional piece of leather as part of the upper.
I was confused by his posts earlier as well, thinking that he was generalizing all Allen Edmonds and all Alden's when he was making his comments (which of course can't be done). It would have saved a lot of confusion if a specific model and picture was referenced from the very beginning. As you said, this is a thread about AE and Alden preferences in general, not just to the specific wingtips in the above photo.