He definitely has a chip on his shoulder. The reason for it is he has unresolved issues from his father leaving his family when he was a young kid. He spoke about it in a clip posted on Instagram by The Running Effect about 8 weeks ago. He said he's driven by the insecurity that he's not enough along with the desire to be accepted.
I hope one day he comes to peace with what his father did and realizes those actions were about his father, not him. In the meantime, he's channeling his pain in productive ways, and I applaud him for it.
Running may not be the most important thing in life, but for Langon it appears to have deeper personal meaning. Taking it seriously is also the only way he's going to be able to achieve his goals of becoming an NCAA champion and more.
For what it's worth, his video interview has been the second-most watched video of the weekend on the LRC YouTube channel. It's second only to Jane Hedengren's interview, and their interviews are the only ones with over 10k views as of this writing. All the other ones are under 3k, including Josh Hoey's interview following his indoor world record. So, even if people find Langon to be off-putting, he's at least generating interest.