It's not really a retcon Since camp cretaceous and the dinosaur protection group website showed that the lagoon is in the centre of isla nublar As it should be The map seen in fallen Kingdom was a prototype map for where the lagoon was originally going to be placed And if your wondering how the Mosasaurus escaped There was a river that connected the lagoon to the ocean
It's not really a retcon
Since camp cretaceous and the dinosaur protection group website showed that the lagoon is in the centre of isla nublar
As it should be
The map seen in fallen Kingdom was a prototype map for where the lagoon was originally going to be placed
And if your wondering how the Mosasaurus escaped
There was a river that connected the lagoon to the ocean