Many people are underselling XL because of what they've parroted from other people, and that's fine. One trick pony he is NOT. Watch the all-snaps video. Anyway, 1st round picks are for athletic traits and upside in my opinion.
I do think LM is going to be a reliable, consistent separator and fine player and would be happy to get him as well, just not my preference. If he is part of a "double dip" at WR I'd be ecstatic.
I am not one of those "this guy is great, so this other guy sucks" people that are so common on forums.