He was throwing daily following his normal in season routine. Then his summer league was cancelled so he's really has no reason to throw right now. Just lifting 2x a day and running, more likely out of boredom than for training purposes.
He heard from his coach that Fall 2020 is likely going to be online. If he's not getting back to campus until December he really doesn't have a reason to throw for quite some time. That creates bigger problems for college baseball which is best discussed in another thread but for now it's looking like no summer and no fall ball.
He's also a guy that needs rest and works better fresh. Throwing everyday just makes his arm tired. He was looking forward to doing his own thing in terms of routine this summer