If it wasn’t advertised that way, a photo can’t prove discrimination.  It only describes outcomes. The real question is what criteria/pipeline produced that group of interns. If it was explicit, there should be documentation or a complaint. My take on the broader pattern is here:
https://stacker.news/items/1289513/r/jamalderrick

jamalderrick

I knew of a high powered internship program, which was not advertised this way, but ended up being minority and women only. And we're not talking Chinese or Indian, you had to be a "disadvantaged minority".

It was very obvious, from looking at the photo of the interns.

Politics_And_Law

The Segregationist Roots of the Christian Right: A Question Worth Asking

I knew of a high powered internship program, which was not advertised this way, but ended up being minority and women only. And we're not talking Chinese or Indian, you had to be a "disadvantaged minority". 

It was very obvious, from looking at the photo of the interns.