Good luck, but be honest w yourself. You have said he's interested in military academies,and academics more than baseball. The fact that son is showcasing w injury says otherwise.
What does he want to do?
Seems strange that he misses HS season, has been dealing w Injury since Oct, dr says to shut down including PT, but he's played 6 Summer games and now it's apparently ok to showcase. Bit confusing to say the least.
You were given good advice, what u do w it is up to you. Be realistic and know it's difficult to get into military academies, even w good grades and skills. We ve seen this firsthand w teamate. Maybe you feel that this is his only chance to be seen by academies.
There are good people on here who have expressed opinions/concerns for your son and his injury. Many have first hand experience and have been in same spot. You seem determined to go. So let the chips fall where they may. Hope son heals soon.