Why do you want to talk about a normally sized person? Is that you?

With your seat all the way back and if pedaling at a fair effort your balance over the cranks is probably wrong. Correct your reach with stem length and/or bar drop.

I used to have the problem you describe and was moving my seat back too because everyone else was doing that. Apparently I'm unique and different. My issues went away by moving the seat forward quite a bit. Maybe you are unique too!

Don't pigeon hole yourself to formulas and adages. They are only a place to start and you adjust from there. Too many have forgotten the adjust from there part.