I wouldn't say it's that controversial, to be honest. The removed effects were essentially 'icing'. If the ride opened day one without it, nobody would say boo. If you rode it without ever knowing the old effects, you probably don't take any notice.
The lift hill, with it's anti rollback dogs (old boats) etc was a noisy bastard and you couldn't really hear anything, but the spark devices and the pepper's ghost gave you something to focus on while you were lifted up 'tin shed hill'. Without these to look at, you look elsewhere and start noticing the CCTV camera. the electrical runs. the maintenance accessways, etc.
These missing items weren't much, but they were an example of putting something in, because you can that adds to the show and spectacle and distracts the rider from the obvious machinery they're sitting on top of.
West is an example of an older time, when you didn't spin a wheel for the ride type, another for the theme, and call it a world class attraction - West had a lot of thought and detail put into it (that was subsequently bastardised trying to bandwagon onto the latest Will Smith hotness without really trying), and change to the ride or not, I miss it, because it was an example of what you can really accomplish, rather than slapping a logo on a plastic lunchbox and calling it a day.