good analysis,
its a mistake, even the WTS likes to point out, to rely on other "smart" people in order to believe something.
Even smart people often believe weird things (see book: Why people believe weird things - Michael Shermer), the reason is not because of scientific proof or evidence, but lies in a psychological background.
anyway, even though higher education for witnesses is frowned upon, and lately became more restrictive, one does not automatically loose the privilge, they just will be questioned about their motives in connection with their overall spiritual appearance. In my area, I know elders, pioneers, ms, who went to university as babtizes witnesses, and it did not effect their privilege. But maybe in Europe things are more relaxed regarding higher education, I guess.
This whole new take in the new magazines, as you rightly pointed out, is a PR-campaign, trying to cover up their really extremely sceptical stand towards higher education, which you hear at conventions, meetings etc...