I'd love for them to name Robinson in a suit. Not that Miami would win (it's very difficult to prevail over a "news" organization), but because the number one rule for journalists is don't get sued. That is a death sentence for most careers.
I think the #1 Rule is get the facts, especially if you are an investigative journalist.
Getting the facts right and substantiated beyond reproach ensures that you don't get sued.
It's never what you think, only what you can prove.
If you only think it, but can't prove it, you should never write it.
I wish it was that way and no doubt it's the way it should be. But sadly it's not. The media today almost never publishes full stories with the full set of facts (except the select few, NYT or WSJ) and especially not beyond reproach.
Take Miami's case. In order to prove a libel case, the person must prove: 1) that it was false, 2) caused harm, and 3) made without adequate research. For an institution to sue, they must prove all that and 4) made with the intent to do harm or with reckless disregard for the truth (proving malice intent - which is extremely hard to do). So Robinson doesn't even need facts to have legal protection, just a belief and a source.
But if journalists want to keep their jobs, they must avoid lawsuits. And 99% of the times, a retraction or correction is enough to avoid it. Robinson surely won't do that.