I went yesterday. No, the peak doesn't loom over the park, mainly because they've carefully placed it such that there's no clear view toward it from nearly anywhere in Disneyland proper.Even if you account for her perspective from the top of Mickey and Friends, this land is going to look over the park even more dramatically than I had feared. Sure they built a berm and planted pine trees, with more on the way, but SW:GE will be visible inside the park and guests will feel the difference in scale between Disneyland proper and it.
Edit: Have any locals been to DL since it was topped out?
The contrast in scale while in Star Wars Land from the rest of Disneyland is an epic fail. Andy Castro's criticism of this is the best critique that could ever be said about this issue.