I don’t know if you should go but I’ll give you my take.
We’ve received a huge number of these types of invites since the recruiting rules changed last spring (as a sophomore) and lots from the same organization too. There is nothing personal about them, so they go into the trash bin. I have a HS jr and he is eligible to be recruited now, yet the emails for these prospect camps are still the same canned style with zero personalization from last year. They are just trying to get bodies to attend their camp. Should you go? Up to you but I’d temper my expectations.
The general rule I’ve been following is no showcases (or showcase camps like your example) until he has something that would put him in the top of the 5-10% of players or some other high metric that would make it worthwhile to show. Otherwise it’s just a place to get metrics documented and pay them to do it. I think as a freshman, it’s definitely not worthwhile to attend.
Also, I imagine these multi school camps will go a lot like our organization’s ‘scout’ days at a particular area university. There are 150-180 players at 6-8 hour event. Takes most of the day to get everyone through certain skills assessments and then finally live pitching where you’ll get 5 batters or so as a pitcher and 2 ABs as a hitter (or both).
Attending a specific school”s camp can be beneficial at the right time. You’re probably better off waiting until sophomore summer or later for a number of reasons but including recruiting calendar but also the growth factor.
I still would avoid attending showcases or showcase camps unless you have a specific focus like HA focus and attending Showball or Headfirst or get an invitation to a national showcase that was the result of the player’s performance on a regional or national level.
Hope this helps and glad you asked the question. You are entering a whole new world of baseball at the HS level and into recruiting eventually. It sometimes difficult to weed out what is good and what might be a waste of time.