Well done Geezer, you are the proud winner of a Blue Gromit Badge awarded for the longest swallowing of a Euro myth.
The EU have never had a problem with bent bananas.
Here is the correct answer: the commissioners have no problem with straight bananas, it's the crooked ones they don't like so much, but they have never banned them. As Commission Regulation (EC) 2257/94 puts it, bananas must be "free from malformation or abnormal curvature". In the case of "Extra class" bananas, there is no wiggle room, but Class 1 bananas can have "slight defects of shape", and Class 2 bananas can have full-on "defects of shape".
No attempt is made to define "abnormal curvature" in the case of bananas, which must lead to lots of arguments. Contrast the case of cucumbers (Commission Regulation (EEC) No 1677/88), where Class I and "Extra class" cucumbers are allowed a bend of 10mm per 10cm of length. Class II cucumbers can bend twice as much.