Yea from the vloggers you cant tell. So for Epcot, the issue was even though they closed at 9, the restaurants closed earlier. Specifically Via Napoli had a last seating at 7:45. I don't know whats happening with the restaurants there when Epcot is closing at 7. will last seating be at 5:45? I hope not. Otherwise we were really glad Epcot was open until 9 and gave us somewhere to visit at night.
Magic Kingdom was difficult because we like the nightime lights there, couldn't see that. And if a ride went down , say at 5 due to weather or technical difficulties, it wouldnt come back up because the parks were going to close soon. And we really missed the plaza ice cream parlor, which wasnt open at all.
Animal Kingdom was a huuuuge blow to us because we LOVE Pandora at night. It also caused the rainforest cafe thats outside of the park, to close at the same closing time (6pm). We love it there for dinner.
Hollywood Studios, again it was open until 8 which is better then 6 however we still didnt see much lit up.
The main issue is when visiting for vacation, especially onsite, the best thing is going to a park in the day, pool and rest in the afternoon at the resort, back in the park in the evening for dinner. We could barely do that this trip. We will be able to do that AT ALL with the extra short hours.
Another HUGE issue was and will be even more so the transportation. Because the boats, skyliner, and monorail and busses are only open usually for an hour after a park closes, we couldnt take them at night to visit different places, resorts, or just take them to experience the beauty. That was a huge issue.