With the migration of pass and isla exclusives (and Stegosaurus ungulatus for some reason) to PvP and assault incubators, the best traits these had before (that a limited selection means that chances of getting what you wanted is higher) is now gone.
Releasing them into being into all zones (like Velociraptor, Tanycolagreus,...) or even some different zones could have been better.
And also, notice how Titanosaurus is not in either of the rosters? Does that mean Titanosaurus is back again at being only aviable through events and Isle of trials?