Logitech has great lawyers. It's almost guaranteed that there a "this controller's intended use is only for ____" in their purchase agreement paperwork.
IMO that argument weakens their case. The controller was one of the least problematic things they did. Mechanical controls would have compromised the hull even more, so it was always going to be controlled electronically. I hope the complaint at least offers examples of better options and how those would have had any effect at all on hull integrity.