The entire Big Ten (I think), Stanford, etc. It's been going on basically forever and explicitly written into offer letters for years by many schools. They're not "leading" the charge on anything, they're following the lead of many other schools.
They care about the PR, which is what they are undeservedly getting for this change. Less than a 50% grad rate for AAs tells you all you need to know about how much they actually care about the welfare of their slaves... I mean... "student athletes."
This is the title of most of their social media campaign on this:
<iframe title="Embedded Tweet" style="display: block; max-width: 99%; min-width: 220px; padding: 0px; border-radius: 5px; margin: 10px 0px; border-width: 1px; border-style: solid; border-color: rgb(238, 238, 238) rgb(221, 221, 221) rgb(187, 187, 187); -moz-border-top-colors: none; -moz-border-right-colors: none; -moz-border-bottom-colors: none; -moz-border-left-colors: none; border-image: none; box-shadow: 0px 1px 3px rgba(0, 0, 0, 0.15); position: static; visibility: visible; width: 500px;" class="twitter-tweet twitter-tweet-rendered" allowtransparency="true" scrolling="no" id="twitter-widget-0" frameborder="0" height="211"></iframe>
<script async="" src="//platform.twitter.com/widgets.js" charset="utf-8"></script>
Sure, Haden says "help to lead" and honestly I appreciate them taking a step in the right direction... but most schools outside of the SEC already do this, and USC is late to the party yet grandstanding about this policy change. Every other school that has put this in hasn't seen the need to toot their own horn over it and make a big deal, because following common sense and basic human decency isn't the kind of thing most places deem press release/curtain call worthy.