At the very least they should have signs advertising the show near the park. Fantasmic does this well. It shouldn't be that hard to find a show at the end of the night, but yes, for most guests it was a complete surprise.
I do hope they have learned from the past in many aspects of this one. But also, if this show is bigger, it will be harder to ignore during the daytime.
I saw the construction going on at the lagoon. Is this a new viewing platform? Can you watch this new show from all sides?