Says who? On the one hand, the latter might be much more under his control. Social anxiety is a weird thing.
But I don't think it is social anxiety, it's calling BS on the machine that cranks out media sausage. Lynch is demonstrating, intentionally or not, that the whole premise of interviewing the players for their thoughts and comments concerning the opponent, the game, their team, etc is not served by the conveyor belt the league and media have built to gin up column inches (or tape inches, or disk bytes) of empty, cliche garbage and then affixing a player's name on it to make it a "quote."
It was always bad, but with ESPN and its copy-cats it's now just a joke. Lynch is paid to be a football player, and he's a great one. If his contract also says "thou shall take part in our dog and pony show" then he's actually doing them a favor by creating a story. They should be happy, but they're uncomfortable that the actual story is the demonstration that 98% of the talking heads involved with sports media are utterly unnecessary.