What your legal training missed, is the other related crimes:

Encouraging/Inducing -- Subsection 1324(a)(1)(A)(iv) makes it an offense for any person who -- encourages or induces an alien to come to, enter, or reside in the United States, knowing or in reckless disregard of the fact that such coming to, entry, or residence is or will be in violation of law.

Conspiracy/Aiding or Abetting -- Subsection 1324(a)(1)(A)(v) expressly makes it an offense to engage in a conspiracy to commit or aid or abet the commission of the foregoing offenses.