That passage comes right after verses in which Paul defended his apostleship. Moreover, the Bible does not speak of any other person who had such an experience, and Paul is the one who tells us of it.
इन सारी बातों को ध्यान में रखते हुए यह कहना वाजिब होगा कि यह दर्शन पौलुस को ही मिला था ।