Yes, you posted the portion of each link that states he is good at what he does. The fact that each of those links make that post only further the mystery of why some think he's not athletic. However, you didn't post the truly pertinent parts as it pertains to questioning Long's athleticism. But, I'll be glad to.
--- Long does not possess the amazing athleticism or speed off the edge to make scouts drool.
--- He may never blow you away with his physical traits
--- he lacks his Dad’s athleticism
--- Long knows his limits athletically
--- He lacks that "elite" athleticism and speed
--- people want to knock his athleticism
--- there's a perception about him that his weakness is a lack of great athleticism
--- Don’t get caught up in the “he’s not athletic hype”.
--- Doesn't have great timed speed or quickness....may not have a lot of upside
These are the parts that I'm talking about. His athleticism has been questioned. And, no, when you're talking about the #2 overall pick, there is no functional difference between questioning athleticism and questioning elite athleticism. Not at that level of expectation. If
Leonard Little says the kid is athletic, he's not talking about some general level of athleticism.
Leonard Little is an elite athlete, and I'm sure he is more than capable of recognizing it in another.