Huh?

Ronald Bailey's Reason column on ectogenesis and Roe v. Wade includes this sentence:

In Roe the Supreme Court essentially forbade abortion at the point of viability, which the justices suggested began at 28 weeks of gestation.

To which I say, Huh?!? The Supreme Court, as a court of law, actually forbade a type of abortion in Roe? This will surely come as news to every legal scholar who has ever read that decision.