This year definitely feels like a starting point for SeaWorld to test the waters of a theme park haunt event so close to the "Clown with the most Jack'd Up Halloween Event." I think the size is fine for year one. Howl-O-Scream Orlando has more houses, adult bars, scare zones, and future expansion than Dark Horizon ever did. Ironically, both of those events have been the two newest Orlando haunt events with a lot of "water" themes.
I think if SeaWorld over the next few years can create a Howl-O-Scream in Orlando that is very comparable to the quality of HHN Singapore, then it could be a new Halloween tradition for the local area. I do not know if that will happen, but that would be my hope...
Speaking of size for Howl-O-Scream events though, it does kind of bother me that the original three Howl-O-Screams have been downsized over the past few years in order to give Orlando and San Diego Howl-O-Screams. Oh well...