I haven't seen it w/r/t EU designs but in theory, a parody defense might be relevant to situations we've seen over here with claims of trade dress dilution--e.g., Chewy Vuiton, My Other Bag, the Wavy Baby shoe.
The closest analogous case I can think of with design patents is the KKK case we discussed here: www.regulations.gov/comment/PTO-...
Of course, that was about criticism, not parody. And that kind of claim would fail as a matter of law here, post-CurviSil.