No. The plantiff made two key claims: breach of contract and copyright infringment. This is sensible, because the defendant has either accepted the GPL (and thus is in breach of contract), or has infringed copyright. This is key to the mechanism of copyleft. By suing for both, the defendant cannot just choose whichever is the most convenient and win on the technicality that the other was not considered by the court.

The judge ruled that the claim of breach of contract cannot be dismissed on the basis that the contract does not exist, because the defendant has effectively admitted that it did exist.

The judge also ruled that the claim of copyright cannot be dismissed on the basis of jurisdiction.

None of these things relate to the enforceability of the GPL in general.