As others have said it appears legit. Requesting academic information is a buying signal. Now for the word of warning ...
If this is the only D1 pursuing him do they see something everyone else is missing or are they going out on a limb? If the coach makes a mistake he replaces the player next year. If the player makes a mistake he could be out of the game unless he transfers down. So part of the decision has to be about rolling the dice and would he be happy there if baseball stops being part of the equation?
But to start do the visit. Keep it in play.