As I said initially, I think it's a fine line, and a refund is probably a right a vlogger is not entirely "wrong" to exercise. It just seems in poor taste because they're going to opening night 1) with the knowledge that it will be more packed than normal because their ilk is gumming up the works in order to shout "first!", 2) with the intent to monetize their review whether it is good or bad, 3) with the benefit that the experience being bad actually leads to more clicks in many cases, and 4) with the incentive to go to absolutely every event regardless of perceived quality because they want to generate content.
Compare the motive of "must consume all things Walt Disney World regardless of quality in order to create content for my channel" to "sounds like a fun thing for my family to do so that we can casually enjoy drinks and ride more rides". I am simply more sympathetic to the latter and feel that encountering duds is more a duty of the former if you're essentially making that your occupation.