I suppose it doesn't matter to 'flexitarians', which is a bigger market than moral vegans/veggies. Maybe they'll change it after veganuary when they realise they're not selling many.
I wonder about their beanburger - it's had the PETA seal of approval in the past (as long as it's ordered without cheese/mayo) - if cross-contamination is something they give zero shits about, do they fry it in a fryer that has meat cooked in it as well?
Burger King in plant-based fail shocker
https://www.theguardian.com/business/2020/jan/06/burger-kings-new-plant-based-burger-is-not-suitable-for-vegans