I'm sorry, but that was an extremely weak argument?
Outside of not being familiar as to where it states that one was not to regard Jesus as being 'here or there' (but I'll concede this for now), Paul's extraordinary and exclusive experience was for a specific purpose and intent, and you clearly saw the amazing results that followed from it.
Many exceptions occurred throughout the Bible that are not to be regarded as common place, nor even explicable, and that may appear as theologically contradictory or implausible. Moses and Elijah 'seeing' God, the elders on Mount Sinai seeing God while eating in His presence. Moses speaking to God 'face to face', or the account of the burning bush. All these imply that God can be circumscribed in one location - impossible. ...but, that's in regard to God, as for Jesus, who obviously is not God, why is it extraordinary to believe that he appeared in one location at a certain point in time. Did not his post-resurrection appearances substantiate the plausibility of this fact?
I believe that, just as Paul stated on several occasions about himself, the other Apostles also received revelation and visions from Jesus in order to strengthen and aid their ministries, but that these phenomena just weren't recorded as such, nor are necessarily to be regarded as prescriptive, but merely descriptive.