the curfew is 2300L not 2200L. Why the TSB got this wrong I have no idea.

the core issue of flying after the hard landing is one thing, but the Gotta-Get-There-Itis was flawed, they had an extra hour to deal with getting someone to come check, and if they wanted to, they had more than enough time since they landed approx 2120, and would have been at the gate by 2130. It would have taken priority dispatching maintenance but they could have reasonably gotten there by 2230.... IF it was important enough which it clearly wasn’t.