That may be part of it, and a bigger part of it for the EU is that they need some excuse to put trade restrictions on US agricultural imports. This is very convenient. They can pretend that it has nothing to do with trade, just public health and safety.
From Atlas Shrugged by Ayn Rand:
"The State Science Institute," he said quietly, when they were alone in her office, "has issued a statement warning people against the use of Rearden Metal." He added, "It was on the radio. It's in the afternoon papers."
"What did they say?"
"Dagny, they didn't say it! . . . They haven't really said it, yet it's there—and it isn't. That's what's monstrous about it."
His effort was focused on keeping his voice quiet; he could not control his words. The words were forced out of him by the unbelieving, bewildered indignation of a child screaming in denial at his first encounter with evil.
"What did they say, Eddie?"
"They . . . You'd have to read it." He pointed to the newspaper he had left on her desk. "They haven't said that Rearden Metal is bad. They haven't said that it's unsafe. What they've done is . . ." His hands spread and dropped in a gesture of futility.
She saw at a glance what they had done. She saw the sentences: "It may be possible that after a period of heavy usage, a sudden fissure may appear, though the length of this period cannot be predicted. . . . The possibility of a molecular reaction, at present unknown, cannot be entirely discounted. . . . Although the tensile strength of the metal is obviously demonstrable, certain questions in regard to its behavior under unusual stress are not to be ruled out. . . . Although there is no evidence to support the contention that the use of the metal should be prohibited, a further study of its properties would be of value."
"We can't fight it. It can't be answered," Eddie was saying slowly.