Was Trump's executive order on college free speech necessary?

Here is a link to the actual executive order:

https://www.whitehouse.gov/presidential-actions/executive-order-improving-free-inquiry-transparency-accountability-colleges-universities/

Other questions:

Is free speech under threat on college campuses? Do controversial speakers have a right to a platform on university campuses? To what extent can students protest certain speakers? Are conservative views suppressed on college campuses?

To me it’s sad that anyone felt this was necessary. Free speech should be a given on college campuses.