Saying the GPL is draconian and limits freedom is like saying the 13th amendment limits freedom since it takes away your right to own slaves.
In short, if you agree with the philosophical and practical advantages of releasing your code into the public domain, there is no excuse not do so under the guise of legal FUD.
Technically, according to the text of the 13th amendment, it formally and legally establishes as a constitutional right of the state to declare people slaves as "punishment for crime whereof the party shall have been duly convicted", which has of course resulted in prison chain gangs and various corporations hiring prisoners for cheap compliant slave labor over the years, and in the demand for such slave labor and thus the motivation of the state to imprison as many people as possible.