I don't think any Jurassic park/world game or film would benefit from blood and gore. Yes you see dead animals and some blood in the films and in JPOG you saw the carnivores tearing meat from their kills but it wasn't full of gibs and guts why should it be? Secondly I hope they add some of the original characters back to this game my most wanted being Dr Alan Grant but I think any of the original JP characters would do.
Not having a sensible level of blood in the game is both unlore friendly and inconsistent with reality. No one is asking for a blood bath, but animals eating other animals with no blood showing is ridiculous.