I think Berklee has the numbers figured out. They've been washing students out for decades. But they have absolutely no shortage of kids lining up to be first-year students. And their potential to continue to bring in young musicians has only grown with their campus expansion.
I'm a graduate. I play gigs (local only) and teach private students for a living. I could give up the teaching if I really wanted to, but I'd only just be getting by if I did. Although when I think of the other musical projects I could take on if I wasn't teaching and how those could become more rewarding, I go down a planning rabbit hole . . . .
Anyway, many of my friends are also graduates. Some do the same kind of thing I do. Some others are touring for huge international touring artists, both new and legacy. Some became realtors, one became a golf instructor and is raising a huge family, a few are housewives. Some aspire to go full time in music, but need a full time day job to pay back their college loans. One of them (to be fair this guy is an acquaintance only, just did a handful of gigs in the same band) is the drummer for the third or fourth biggest artist in the world.
I think one's path in music is directly tied to personality. I'm a very pragmatic, risk-averse person, with one big exception: not doing music for a living was not an option. So the first and only time I ever went on tour with a band was a pretty bad experience. Van life, even for a week, wasn't for me. I knew that very early on. The musicians that are okay with that lifestyle often start on tour with small bands, meet lots of people on the road, and start to build toward working with bigger and bigger names. But I want a more localized lifestyle. Home most nights, that kind of thing. So I focused on finding "steady" employment in club date bands and local artists that at least some kind of budget, etc.
By the way, just to address the OP, Anthony Vitti is regarded to be one of the absolute best teachers and MENTORS at the school. I didn't study with him when I was there, but many of my friends did, and this was a unanimous sentiment. One thing I made a huge mistake of overlooking was the value of the wisdom of decades of working as a musician that these guys had over me. I was so focused on the theory and the "book learning" aspect of studying there that a lot of the other stuff I should have been learning there was going over my head. Little did I know at the time that fluent soloing over Giant Steps at 320 BPM wasn't how I was going to get work and learn the business of playing music.