The fact that an inert placebo product is being contaminated by some random active pharmaceutical is funny, true, but contamination is contamination. A consumer product is contaminated with something it is not supposed to have; and low levels of antibiotic are actively harmful, not helpful. Since a safe product is rendered measurably unsafe, it is good that this was caught. Drug manufacturers regularly demonstrate that without monitoring and regulation bad products will enter the marketplace.
Nice to meet you, Sir Buzzkillington the third