I've never seen anyone have a revaluation by opposed information exchanged leading to a change in their viewpoint, at best it may plant a seed.
There are patterns of thought in both viewpoints that have flaws. Having an open mind is complimented by one that's closed & vise versa, egos kept in chains.
I've never seen or experienced anything that would constitute being classified as Alien contact.
Having said that lets look at the odds appealing to a statistician's perspective. All the reports/claims ever made of a UFO sighting/experience are false.