There’s certainly enough out there for anyone following the story to believe there was hazing; I don’t know the extent or severity. With that disclaimer:
It’s not hard to believe that a group of men in the situation you describe could / would silently abide such hazing. It becomes part of the culture, especially if veteran guys are participating in it (or even coaches…)
Guys who have an issue with it might keep their mouths shut, even if they don’t actively participate in it, for fear of rocking the boat, ostracizing themselves, damaging the careers / reputations of guys they otherwise respect as teammates.
Frats, sports teams, military, even corporate world…there are tons of cases where terrible hazing or inappropriate group behavior has gone on for longer than you’d otherwise expect.