I'm positive it's not consumer mistake, since the recovery phrase was present in two unique sites: backed up inside a file on S3, and printed on a bit of paper. This additional complexity increases the threat of misplacing the passphrase, and thus shedding your copyright. In accordance with BIP43 recommendation, https://getsocialselling.com/story4223618/facts-about-bip39-seed-phrase-word-list-revealed