Yes, that’s been standard practice for a long time with express monorail, to speed up inbound guests in the mornings. But seems to be relatively new for ferry. Before, you always had the choice of either ferry or resort monorail to go back to TTC in the mornings.
Especially in covid era, having the open air option was important for some people. Not everyone wants to join a crowded monorail. Plus adding more people (however few) forced onto resort monorail makes it busier for the deluxe resort guests on that line. Perhaps some Contemporary guests need to complain to the front desk when they can’t get a seat in the morning, and then this will change back.