That does make a lot of sense. Although Krum doesn't seem too conservative, as he pursued Hermione, and even invited her to visit him at home. But it definitely seems likely that there are more schools in the area and that parents choose where to send their kids to a larger extent than in UK.

And about Snape, I didn't really mean the fact that Nagini killed him, I was more wondering if Snape was really defeated by being killed. He'd already done so much to defeat Voldemort and his work was mostly done. Would the wand have recognised his killing as his defeat?