Players should only have access to the dinosaurs they’ve unlocked. Part of any competition is practice, knowledge of your sport, and your equipment. Guidelines are set on the equipment to keep one player from being overly advantaged but does not guarantee a player access to the best or exact same equipment as their opponents. In this game the dinosaurs are your equipment, knowing your dinosaurs moves is your knowledge, and knowing how to use your team, their moves, and anticipating/reading your opponent is your skills. The equalizing of the levels would be setting a guideline so players are using similar equipment meaning a players have to rely more on knowledge and skills.