Clearly, the experience of making Jurassic World 2 was an emotional experience for Bryce Dallas Howard.
Spending time in the relative wilderness can certainly bring people together and it may be this which made the movie so emotional for Howard.
While the cast and crew were in Hawaii, which sounds great, the filming of the movie itself was likely not in and around a four-star hotel.
The idea that a summer blockbuster action movie could bring out that sort of emotion is more than a little unusual, though certainly, the experience of making a movie is very different from the experience of watching the finished product.