This is a very recent change. Started just this past weekend in fact. DL Magic Morning for on-site hotel guests or people with 3-day or longer tickets (hopper or single park per day) is now only available on Tuesdays, Thursdays and Saturdays. DCA early entry for on-site hotel guests only is now Sundays, Mondays, Wednesdays, and Fridays.
Edit: BTW, the official
Disneyland website ticket page does list Magic Morning as currently available only on Tuesdays, Thursdays, and Saturdays. Disney isn't always the greatest with consistency though, so it's possible some parts of their website still don't show the updated information.