Agree she should be commended. Also understand her difficulties of coming forward in 2016 as an international sports reporter from a country that may have different views on women's rights.
However, she let 5 years go by, 5 years of which she took the risk of being indirectly complicit of allowing Porter's behavior to continue, for him to harass and harm other women. As we know this type of behavior is typically not a one and done event. Understanding she was most likely afraid to take action, the right thing to do was dealing with this at the time of the harassment by reporting his behavior anonymously either to the Chicago Cubs organization and/or her own organization.
ESPN would also be indirectly complicit of any further sexual harassment by Porter. They had the information and also should have taken action instead of sitting on it and waiting to break the story for their own purposes. They could have contacted the Cubs organization and filed a report. The media's morality has been bankrupt for some time, however, that's probably a different thread.