Have you been since it went up? Coming from that side of the parking lot outside the park by way of courtesy tram, it feels as though you're being driven past the NASA
vehicle assembly building. In person, it is truly a
massive building. Up until they started tearing up the middle of Future World, it was pretty well hidden from a lot of areas within that area. Can't say what that looks like today but I'd have to imagine they are at least trying to rebuild with sight-lines in mind.
That said, it's incredibly obvious from the promenade of World Showcase.
Way more than Soarin'. It's nowhere near as bad as
images like this would suggest but unless you're legally blind, it'll be hard not to notice if you take a gander back towards Future World while across that pond.
Whether or not that ruins your experience is a different discussion but, yes, it's definitely noticeable.