That's almost as bad a list as the one Disney made for Avengers Campus.
Both lists seem to be made to curtail criticism that there isn't enough to do in each of these lands, especially for those who have difficulty getting to experience RotR.
Just off the top of my head, here's 10 things you can do in Hogsmeade, all included in your regular park admission:
1. Ride Forbidden Journey
2. Ride Flight of the Hippogriff
3. Ride Hagrid's Motorbike Adventure
4. Watch the night time show on the castle
5. Watch the Frog Choir
6. Watch the Spirit Rally
7. See the show in Ollivanders
8. Talk with characters like the conductor next to the Hogwart's Express Train
9. Tour Hogwart's Castle, without being in line for the ride
10. Look for animated window/shop displays and Easter Eggs (since that's on the Avengers Campus list)
^ none of which include buying food, merch, wands or paying for a Park2Park ticket to ride the train, or seasonal stuff like when they change the land after dark during Halloween.