I honestly don't care about soundstaging either, but I have to admit these are a little "claustrophobic" sounding. So if staging is even a little important for you, then these probably won't be a great experience. Peronsally, I have no issues with the soundstaging of the 7520, but would put that caveat out there for people just in case.
Honestly, my ears have been trained by the SE530, which was my first mid-fi to hi-fi headphone/IEM. Been listening to those for 4-5 years now. And the 7520 is my second good quality headphone purchase ever. I did test out a lot of other models before settling on the 7520. But for me that means that I don't really notice the 7520 sounding claustrophobic, as frankly that's what my ears are used to with the SE530 which also isn't known for it's soundstage :)
So I guess it's also what you're used to. People who are always listening to open headphones might find the contrast too large with the 7520, I suppose.