This is one of the cases where they will probably suffer if any of this turns out to be true. OnePlus is a small manufacturer with a following of enthusiasts. They aren't large or popular enough to PR their way out of this.
OnePlus is owned by the same company that owns Oppo and Vivo, so they aren't really a small manufacturer.
Wirecutter removed them as a recommendation. Others will probably as well. This should affect sales somewhat and since smart phone margins are so slim it could have a drastic affect.