Reportedly, the vast majority of Celestial Park's entertainment offerings have been cut. A good number of performers were actively working in and around the park the past few weeks during previews, but others hadn't even been able to begin. It seems that most of what was planned didn't even make it to opening day before being cost-cut.
From my own experience, I heard there was some incredible talent showcased between these shows and performances. I myself didn't get to experience much. Whenever I saw a show happening, I was on a very specific path to Hiccups or DK or wherever and didn't have time to spare watching an atmosphere show. It seemed that most guests had the same motivation, at least on the day I went. Guest interaction segments were made to the air, or to people at a distant bar across from the stage. I chalked it up to it simply being rehearsals, and maybe the average day-guest might be more willing to stop and appreciate it. I guess we'll never know.