Honestly, if they didnt end up unresponsive and broken, I'd be pretty in favor of virtual queue systems for pretty much any haunt, just getting a return time and being able to hang around the scarezones would always be better than waiting in 200 minutes of switchbacks.
That said, that leads to a heck of a lot more people hanging around in the park, which makes said scarezones overcrowded, spots for those virtual queue return times would probably be gone within an hour of the park opening, leading to anyone coming in later being out of luck, and odds are the entire system would break constantly, if Disney is any indication. So... probably better on paper than it would be in practice.