Pretty typical for bike shops to fit someone that way. Using the stand over height. That is all they had years ago. So, the bike shop did not intentionally sell you a frame that was to big. Its is best to have a professional bike fit. Not every shop has a professional bike fitter. There are many factors to consider as has previously been stated. This is coming from someone who’s has had many years of cycling experience and now has to ride a recumbent because of chronic pain from improper fit.