jbhtexas is on the right track here. After doing some reading, it seems the three member panel that came out with this ruling did not hear or consider what evidence the NFL has on the players or the validity of that evidence. The issue they were considering was whether or not Goodell even had the power to punish these players at all. Their determination was that maybe he does but, he didn't follow correct procedure in this case. It doesn't mean the players get off. It just means their suspensions are lifted until Goodell can provide a path to punishment that he does have the power to enforce. The example I read was that he could go back and give them the exact same punishments, but do it under the "Conduct detrimental to the NFL" umbrella, an avenue where he has more power, and the panel may uphold it.