Well, they can shut stuff down like they should have weeks ago, or more kids can plan to go their grandparents funerals. And I don't think that's hyperbole at this point, the growth curve on the virus in the US is absurd and we're following the Italian path with 10 times the population and none of the preparation.
That aside, I am interested in where things are going to go eligibility wise. My senior had already suffered a season-ending injury and was planning on getting a redshirt (and exploring a hardship waiver to get a sixth year, since he already has a freshman redshirt) to potentially retain eligibility in grad school. Their season was officially canceled today. He's already got 3 grad school offers at schools he might be able to sneak into the bullpen for, and where having two years left might be a plus.
I would think the NCAA would have little to lose by extending eligibility for everyone losing a season to this, which is probably why they won't, of course, being them.