I super disagree with this. Closing a coaster for a few days out of an abundance of caution is not a significant inconvenience and, depending on what occured, could prevent a repeat occurrence.
I cannot say much, but I know of another physical restraint failure on a coaster that has never been widely reported. In that case, similar coasters were shutdown, an investigation occurred into the initial incident, the cause was found, and then the other, similar coasters were inspected for the same issue. Multiple other cases were found where failure would have likely, eventually resulted due to the same previously-unknown fatigue-style issue. They were ticking time bombs.
Maybe B&M knows more about what occured here than their current statement to the press says, but unless B&M knows what happened here already, it seems obvious to me that a stop order for all coasters running these restraint components should be issued worldwide.