I have no problem with a hotel charging a no show penalty. The fact Marriott does will add to my increasing reasons to leave the brand but if a hotel is gonna charge a fee it needs to be clear and disclosed. It cant say there may be some terms somewhere else that you may or may not have seen and you may or may not have read and they may or may not have a set rate.
Id have no problem if when I booked my room it said on the booking page if you do not check in by 11PM on Monday you will be charged $1100. All it says is your points are non refundable. The manager says the $1100 fee is on the booking page and the confirmation email. It is not.
A hotel can charge whatever it wants for cancellations but needs to show this amount in advance and then I just won't stay there.