I disagree with elements of this. We are in total agreement that the Luigi's Mansion arcade game, with its' unique controller and immersive haptic feedback when sucking in coins and ghosts is literally perfect for a theme park attraction and should be brought over 1 to 1.
However, that game itself already exists, and can be played for like, $5 at an arcade? I don't want to see digital versions of these characters in a Luigi's Mansion E-ticket Universal ride. Give me some practical effects, some well put-together vignettes and show scenes, an animatronic Luigi.
If they don't go that direction, I don't think it's too much to ask that the sets feel alive and full without the AR goggles. Throw in some interactable physical props. Make a side table rumble slightly if you point at it for a few seconds. A floating plate that spins faster if you try to suck it in. The absolute minimum is making it feel at least as engaging as the Cat in the Hat dark ride, which currently I don't think Mario Kart without gameplay / AR actually ends up that much better than.