It has not been established has it that D1 is where this player fits?
Injury or not D2 or other may be where he would excel.
Sluggerdad has said that his son has had some D1 nibbles but injuries have prevented him from doing well in front of those coaches when they've come to see him. From what I've read here, it may be time for the kid to tune out his friends' plans and everything else, and really think about where he wants to be in 5 years and 10 years time. If he's all about baseball all the way, then continue to pursue any D1 and D2 opportunities for now, get healthy, have a great senior year, and look at Jucos in the spring. But if he sees himself as a college grad in a non-baseball job in 5 years, and thriving in that career in 10 years, then picking the school that will best help him achieve those goals is more important right now with application deadlines looming. And if that school is a D3 where he can also play baseball, or a D1 or D2 where he has a shot at walking on, that's even better. Just IMHO as a dad.