Generally speaking (i.e., not just with pool), I tend to distinguish between a
bad call and an
incorrect calls. Bad calls are typically incorrect, but not every incorrect call is bad. An incorrect call is one that appears reasonable in real time from the viewing perspective of the official making the call, but replay shows that things didn't happen quite as they appeared to happen from the official's angle. A bad call is a call (or non-call) that is noticeably incorrect in real time from most any viewing angle.
An example of an incorrect call that was not a bad call would be the facemask foul called against the Detroit Lions at the end of regulation when Detroit hosted the Packers during the 2015 NFL season, a game known as the
Miracle in Motown. Replay showed that contact with the facemask was minimal and incidental, not justifying a foul being called. However, in real time, it looked like an egregious facemask foul. An example of a
bad (no-) call would be
Rams at Saints in 2018. There was simply no excuse for the ref missing that clear and obvious foul.
In the Filler vs. Bijsterbosch match, it's tough to say if the cue ball did or did not hit the rail when watching in real time. It might have been an
incorrect call, but it wasn't a
bad call.