It’s not only PR firms that they spend money on – the Saudis have given $20 million donations to Harvard and Georgetown universities, $200 million from Saudi King Abdullah went to Stanford, Cornell, Texas A&M, CalTech, and others. Money goes far.
Obviously a mere, unintentional oversight that they don't mention getting the Illegal into Harvard College of Law and providing his tuition, room, and board while he was there.
Must have just slipped their mind.