Well, the _license_ certainly shouldn't be an issue at this point. It was changed to a standard MIT license a couple years ago, same as all the other major JS frameworks.

If your company has issues with React being developed by Facebook, that's an entirely different question.

There was a license controversy a couple of years back, yes, but that was solved rather quickly - I understand that you as an intern don’t necessarily have any sway over legal, but they’re not up to date.