I had a conversation with my daughter about this situation. And it fits with something I posted elsewhere.
A lot of Mulvaneys's followers aren't really supporters. He/she is simply acting, is over the top and appears contrived. Many watching it are just watching for side show effect, or simply the entertainment.
I think BL thought this would be contained to a the intended audience they targeted with this endorsement. The fact they failed to grasp the timing and subject matter would be controversial for the vast majority of their consumers is surprising.
This isn't just a failure by the VP of marketing, others failed to apply the necessary direction and gaurd rails to keep this publicity stunt on point. They let Mulvaney take the reigns, not faulting him/her here as they are over the top as part of their schtick. BL should have known to keep this endorsement contained and limited.