Agreed, user provided verifiable entropy eliminates the need to trust the device. Although using 2 devices greatly reduces the odds both are simultaneously broken.
I think it is fine for advanced users to choose 2-of-3 or 3-of-5, etc. These best practices are not meant to be a universal standard, but more the best way to prevent non-technical / new users from losing funds.
For instance, passphrase loss is the most common foot-gun for new users, but passphrases may make sense if an advanced user wants to separate accounts with the same seed words without changing derivation paths.