Let me put it this way. The "might have" in my post is doing a lot of work.
But people outside campuses are also told what they are allowed to think, though, and most graduate their classes of that. The partisan and patriotic indoctrination in the US is heavy. The same selection of vetted thoughts and talking points are constantly hammered into people, and they go on and internalize them, and live them, and congratulate themselves on their good grip on matters. And it starts from early age, too. The pledge of allegiance is just about the most blatant 20th century youth wing stuff, and everyone thinks this brainwashing of the kids is normal, and a good thing...
And in that sense it's not so much about college anymore. It's just that the US is changing, and the indoctrination is changing. Change is both inevitable and long overdue, with almost 50 years of bipartisan neoliberal rule having driven the country into an ungovernable dead end. But with any actual change unworkable in the political landscape, the US is not getting the change it needs, but the change it deserves. Now that the Democratic party has imploded in it's own incompetence and disconnect from the daily reality of the American life, the Republicans are taking advantage of their impotence, and ushering in a new era of a technofascist downspiral. With Palantir being a mayor player in the surveillance part of that, I would expect even traditionally indoctrinated Americans to have problems working for them, if they over time figure out what their daily work actually is. So it is in Palantirs interest to seek minds that would not at best adopt the dark, but those that would be born into it, and molded by it.