Yeah, and that's the thing, it's different, and it's purely down to personal taste if it's 'good different', 'neutral different', or 'bad different'. I would argue it's good different, and I feel I could justify why, but if you can justify why you think otherwise, that's totally fine.
I think a modern ride in that old school adventure ride style would work well. I think Justice Leauge already is that kind of ride, they just didn't add the preshow.
I mean picture it, queue outside like when it was batride for a tour of the Hall of Justice, go into the first room, some explanations about the justice leauge, then news breaks of an alien invasion, and 'We need you to help us!' Throw in an explanation of the ride vechial and that you're meant to be teleporting when you go through the doors, give the 3D glasses a story that they'll protect you from the spores, and then boom! You're into the switch back room with fewer switch backs and less people in it.
That is EXACTLY what old MW was like and I think it would work quite well with that ride. I think guests would revolt if you added a preshow to JL since it's been established for so long without one, but that element seems to be the classic thing that people are missing. Family friendly rides where the preshow is part of the attraction and makes the whole thing a more lengthy experience.
I wouldn't be mad if they added 1 of those style rides, fixed HSD, replaced Arkham and did some version of a studio tour. Even without those though, I still rate the park now above what it was.
Also one thing I would say, MW in 2019 with Arkham is better than MW 2021 without it. So long as Arkham's replacement is better, the comment that the park is at it's peak for me will still stand.