Nope.

This is how Electrum treats BIP39 restoring as well, try it out.

-Jon

2018年11月16日(金) 23:04、Neill Miller さん(neillm@thecodefactory.org)のメッセージ:
On Fri, Nov 09, 2018 at 02:17:30PM +0900, Jonathan Underwood via bitcoin-dev wrote:
> If more apps would implement to the word of the BIP39 spec, multiple
> languages make sense, but since reality is no one follows the spec (/the
> spec is way too open to interpretation) then expecting every app to load
> every language is unreasonable.
>
> Electrum actually handles BIP39 recovery the way the BIP specifies. I can
> restore random strings if I want, and it warns me, and I can ignore it if I
> wish.

Electrum mnemonics are not based on BIP39, which is why it can do
this.

-Neill.