I find this whole event odd to be honest. No theming/bunting on Towers Street, the stage on the lawns isn't being used (madness), no additional catering facilities... I'm not a fan of the fireworks music playing on Towers Street either, could they not knock up some custom music as they have done for other events?
I can't say I like music acts blaring out in each area either. I know the songs are kind of linked to the areas/rides, however it is mostly still pop music being played in themed areas (I know they have more than just pop singers before anyone shoots me down). It feels kind of tacky. The stages could certainly do with some seating at least.
I would have a 'Festival of Thrills' event as each area having a different type of act (so a magician in one area, dancers in another, acrobacts in one, sand artist in one, BMX show in another etc), then on the main stage have a number of singing acts throughout the day or a 'concert' type show, add the usual addition food vans and bar on Towers Street with theming dotted around and job done. I feel that would be something more unique and make you want to stay and watch different performances across the park.
There's no reason this event shouldn't have been on par with Mardi Gras or Oktoberfest, at the core it's the same formula as these events. I guess it's a case of budgets and being cautious with trying a new event. Hopefully it's successful so they can build on something for next year.