View titles in breadcrumbs are being passed through the TranslationManager service as English strings.
The problem is, view titles aren't even necessarily in English, resulting in incorrectly langcoded strings in the user interface translation set. Even worse, if a view's original language isn't English, its title will be impossible to translate to English in the breadcrumb (because it will be incorrectly langcoded as an English string).
Breadcrumbs should use the view's translated title if available, and not use the TranslationManager service at all in case views are translatable, seeing that views are part of the configuration, not the user interface.
How to reproduce:
1) Clean install Drupal 8.1
2) Enable the Content Translation, Configuration Translation and Language modules, enable one language other than English, enable the translation of views, (menu links) and the basic page content type.
3) Create a node/page based view ('Test view', path: 'test'), translate said view (e.g. 'Testansicht').
4) Create a test page ('Test page', path: 'test/page1'), translate it (e.g. 'Testpage', path: 'test/page1' [or anything matching 'test/*']).
The breadcrumb for the translated page will be something like: 'Startseite > Test view > Testpage' instead of 'Startsite >Testansicht > Testpage' as it properly should be.