That's when I lose faith in a fitter. A static goniometer measurement is just shy of useless. If the fitter is going to go by knee angle, they better have a video motion capture system to see what it actually is under load. Sure you can use the static measurement as a starting point, but it's no better than 0.883 * inseam (and arguably worse).

The problem is that there's a big difference between a "pro" fitter that works by formula and one that works by experience. The formula fits are based on studies of racers and are designed to put you in the position that gets you the most power and/or best aerodynamics. A fitter that works from experience will know how to adapt that to the needs and abilities of a specific rider. If the fitter doesn't start by asking you a bunch of questions about how/why you ride followed by off-bike tests to evaluate you "functionally", then your "pro" fit might be just that -- a fit for a pro cyclist with your body measurements.