I didn’t explicitly mention derivation path as I didn’t want to mess up things. Maybe it’s better to state the obvious? “Don’t use any fancy wallet to generate the seed? I should include a derivation washers”? Might be unintelligible by the person who should get the Satoshi?
If you use a non-standard derivation path, it doesn't hurt to hammer it into another washer. Or hammer the wallet name + version.
This makes me wonder if some people use a very high derivation path to avoid someone stealing their coins: if you use for instance m/44'/44'/1875626591'/0 and even if someone gets your seed words, I doubt they'll ever find your (shit)coins.