Might the Spinos be getting a movement speed increase? Currently, a tamed Spino is slower than a Rex tamed, due to JUST under doubling the movement speed when they are tamed. Seems unfair, as the Spino's big advantage is being quick and agile opposed the the lumbering, hard hitting Rex. Might Spinos get a similar movement speed bonus?
http://ark.gamepedia.com/Base_Creature_Speeds
That 300 speed difference makes a hefty difference, as seen by a sprinting human chasing down a wild Phiomia is just about 30 difference. The Phiomia outruns you pretty fast.