On the one hand a new highest price is always concerning, since it creates a path for other hotels to creep up in price as well. On the other hand these properties aren’t ‘really’ part of IHG, and perhaps the agreement that brought them into the chain just makes them expensive (IHG has to overpay to get these redemption nights, and is charging members accordingly).
Nonetheless prices of 75,000 and 100,000 points per night are concerning to say the least.