None of the people accused are currently at the school.
We do not know what really happened, and may never know because of the time that has elapsed.
Accusations are not facts. They may be correct, they may not. We do not know.
The school hasn’t merely confirmed the allegations’ existence. It attests those inappropriate relationships did indeed happen. That’s far closer to being facts than your “we may never know.” Do you have a pony in this, which accounts for your skewed view?