Sorry. We are just fellow video editors and can not provide legal advice. But I doubt you can prove a lot of pain and suffering over one feature.
Where does it say the archiver will trim a clip -- and have you tried both archiver options?
Version 10 is, by the way, a year and a half old. If you purchased it from Adobe, did it take you this long to discover it didn't perform as you expected? Purchases directly from Adobe can usually be refunded within 30 days.