No.
It isn't true of the Magic Kingdom (or any of the other parks) where sight lines, structures etc., were all planned to work cohesively as part of the original plans.
Frontierland, Libert Square etc., were planed with a river and a boat, as was the location of Haunted Mansion.
Now that is removed, and a mountainous structure is being constructed where one wasn't.
Now... As a counter to my argument Splash wasn't always at MK and it worked great where they fit it.
Though... Splash was a smaller mountain than Piston Peak is meant to portray.
We'll have to see.
I'm hoping for the best.