This tells me they’re thinking about their strategy against online booking sites, rather than thinking about their customers. If someone spends 55 nights or more a year (or spends over $20,000) with Hyatt they’re a valuable customer every time they walk through the door.
If a top tier elite books through Expedia because the rate was lower, or because the hotel was sold out on the Hyatt site but still available at GetARoom they’re demonstrating their loyalty. Treating them less well than a first time guest simply makes no sense.