Interesting. I looked at a few of those and there is nothing to indicate that they are/were “iTunes LP” releases on the reference page(s).
Here is one I know is “iTunes LP”, and it states this in the description (editors notes).
Whereas this one found on the list you provided does not:
It just states that it is deluxe, obviously including some iTunes videos with it. What I do not know is if simply including video(s) makes it “iTunes LP” or not. I only have limited experience with them, but in that experience, there is a difference between deluxe and video content and iTunes LP… the LP having its own presentation vs just files.
Mastered for iTunes is up to the heads here, but it is senseless in terms of reality. There is no way to tell one from the other, and it is one or the other as far as I know. I personally do not keep track of the designation because it is not an option, it is just a selling tool and first step to the evolution of the file creation process. Not an option meaning that it is offered in only one way… it was either supplied meeting the MFiT standards or it was not.