I don't see anything that is concerning, but I find it intriguing how Marriott tweaks even the individual days around holiday periods to maximize the week. Because each week is a fixed number of points, that creates points "values" in the individual days in a chart.
As an example, if someone owns a 2 BR OF week at Maui Ocean Club Lahaina Villas and wants an 11 day trip, if they can secure Week 27 (July 9th) as their check-in for their traditional week, then they can book a four nights point reservation (July 5-9) for 4,200 points, which is less than a normal Tues-Friday 4 night points reservation which would be 4,875 points.
This is because the 8,650 points for the July 4th week have been shifted and the July 4th weekend is overweighted (killing the person who wants to add the other three days to their Week 26 reservation).
It's an interesting approach, and consistent with Marriott's approach to premium pricing the most desired reservations -- but creating that value opportunity for the chart-troller.
This is another area where Premier Plus is extremely valuable, being able to pick up those opportunities (subject to inventory availability, of course).
All the best,
Greg