I studied Ada 3 semesters & taught Ada 1 semester at WVU. I think it had to do with the fact that West Virginia Univ was big on defense, NASA & FBI projects which mandated Ada. Some of those avenues have materialized bigtime: http://www.fbi.gov/news/pressrel/press-releases/west-virgini...

Ultimately I felt it was not such a fair deal for the students. Over 50% of grad CS WVU students were non-US, so they would never get to work on these Defense related stuff due to sec-clearance. Ada was also touted as a successful example of design-by-committee, which I found quite nauseating.