While I don't see anything stopping them from implementing an API solution, I'm guessing they don't want everyone to have to do n queries every time they need s

While I don't see anything stopping them from implementing an API solution, I'm guessing they don't want everyone to have to do n queries every time they need some joined info, but I can't say as I'm not involved in the project, and only overheard managers talking to each other about it.