Argh. Enforced BIP39.
Max we talked about this.

But seriously, this is not the first time that you go to great lengths to protect people from their own stupidity.
Which is nice, but for the competent ones you're making a hurdle.
How about a switch on the wallet (I'm not an idiot!) to disable this?

Eh, nevermind me just bitching. There is always the API.