I'm starting to think some hotels are trying shenanigans with the new award pricing or not properly adjusting award pricing.
A hotel in Miami which is a Cat 5, has a cheap rate of $100 per night but is charging 31000 points instead of 30000. A next hotel in Fort Lauderdale (Cat 6) has a rate of almost $140, but rooms are pricing below 30000 points. There's no way a Category 5 with a $40 lower base price is charging slightly more points for a standard room as compared to a Category 6 hotel with a higher rate.