I don't mean this to sound like a personal attack, but I'm guessing you are young (early teens) so you don't quite get the business of theme parks. This is not Roller Coaster Tycoon where you just pick up and move rides like that.
Companies like Universal make decisions based on money. If there is no return on the investment it's not happening. Moving Dragon's Challenge just down the pathway after demolishing all the remaining structures of Lost Continent would cost millions of dollars and add nothing in attendance and revenue. Like many of the posts you've been making about ways for the park to improve, there is no reason logically to do most of the things you have suggested.
The old saying is "if it ain't broke, don't fix it", and most of IoA is not broken. Could it be improved, yes. Will it be improved, yes. Is it their top priority to do those kinds of things, no. They have a raft of new projects in the pipeline including an entirely new theme park that are the main priorities.