My two cents on matching...
Not having matched capsules can result in a shift in the stereo imaging at different frequencies, depending on how mismatched the capsules are at what frequencies and the relative degree of mismatch at those frequencies. The less the mismatch, the less the stereo image is shifted on the recording at that particular frequency.
I think that most people here on ts.com record music in the live setting, not in the studio. In this situation, we typically point our stereo pair in some form or fashion towards the vicinity of the PA speakers. When sound routing is through the PA, the stereo image is largely controlled by the panning/mixing done by the sound guy. Even if the PA speakers aren't blasting, the sound coming through the PA is gonna shift the imaging of any recorded sound that comes from the stage. So capsule matching doesn't really add any value to the typical live taping situation.
In situations where you might be live recording the stage amplified or acoustic instruments (no PA speakers), my recording situation is never so controlled that there won't be some degree of imperfection in the recording, whether people talking, less than ideal location, etc. I'm really not all that worried about whether my stereo imaging has some shifting going on.
So sure, all things being equal, it's nice to have capsules that are matched. However, for live recording, I don't personally put matching high on my list of priorities. To me it's not even worth the extra $50 that Schoeps charges for matching, although I'd probably consider it for no other reason than to enhance resale.
That said, if I were using my mics in the studio where you have complete control, I may have a different perspective on the subject.