Breaking Polylang sorting

I’m using Polylang multilingual plugin. It have taxonomy “language”.
It get languages list like this $languages = get_terms( 'language', array( 'hide_empty' => false, 'orderby' => 'term_group' ) );
And polylang have it’s own interface to order languages (can set term group in its UI).

Taxonomy Terms Order overwrites ordering for language taxonomy. But it doesn’t have any UI like it has for posts “Taxonomy order” menu item. It is not present for language taxonomy. So it just breaks stuff.

I found a workaround, using add_filter('to/get_terms_orderby/ignore', but from my understanding, it shuldn’t break default language ordering at all. If it does change order, at least let me edit order in admin UI.

Either dont break default order, or allow to edit order.