OP: since this is your first road bike, you may be unsure what the bike is supposed to feel like. Your fitter will likely suggest a "typical" fit for your dimensions. And that will be a good starting point. But don't consider it the "best" fit, never to be changed.

I doubt there is a single "right" or "correct" fit.

One part of the problem is that someone else is adapting the bike to what he thinks is best for you, but really has no idea how it feels to you. So he falls back on time-honored guidelines or what he learned at the last clinic. Treat it as a suggestion - a starting point. But after the fitting, give it a few miles and a few rides before making any changes. Your fitter has no idea how flexible you are, or how susceptible that left knee is, etc. I'm betting that even Andy S. and Alberto C. make small changes to their pro fittings.

Then, too, the same fit is not optimal for maximum performance, maximum efficiency, and maximum comfort. A sprinter gladly gives up comfort for speed. A RAAM rider has to dial in some comfort and efficiency if he is to survive. To that end, be sure you fitter knows what your goals are and be equally sure he knows how to adjust the fit to meet your specific goals.