Yeah, I was more likely to see it. But given the choice between “more likely to see it, and thought it was really good” and “less likely to see it, but HOLY CRAP I can’t believe they pulled that off!”, I would rather have the second experience. You only have one chance to surprise people.
I can think of plenty of movies where some major reveal would have made the opening-day crowds bigger, but ultimately would have lessened the impact of the surprise. Like I said, I don’t think you can absolutely say one way or the other, but obviously the publicists chose the way they did for a reason.