I think the game will just be released too soon. It would have taken them 3 - 6 months more time to make the game what it should be now.
But Universal is probably making pressure on the devolpers for making the game to come out in the period of the release of Fallen Kingdom.
Universal also came to Frontier after Jurassic World was released 3 years ago.
I believe that it is very difficult to program a game of this complexity and scale from scratch in just 3 years.
They admitted the had 18 months to do this game. Thars no time at all.