No, the court says the FTC didn't allege that Facebook has sufficient market power to qualify as a monopoly. Factual determinations come later in the process.

The court dismissed the pleading document (the initial complaint) due to its inadequacies but not the case itself, which means that the FTC can file a new complaint with more detailed allegations.

The rough order of civil procedure: the complaint, where the plaintiff(s) makes allegations of fact and law about the defendant party (or parties). This is followed by discovery, where the actual fact-gathering occurs, then usually a motion for summary judgment adjudicated on the facts acquired during discovery, and finally, a trial on the merits (unless the parties settle first).