I would think "looking to be offended", but without knowing any of the parties I would be unwilling to rule out a serious clash of personalities* causing it to be BEC.
Even with a 'cracker-eating-hearing' situation, I wouldn't actually say anything. And I hope I would cut some slack for a bride-to-be who sounds to be shouldering the whole planning/doing process without help from the 'wrong-lane' groom.
* I know getting my name wrong irritates me (much more) when it comes from someone who is dismissive of my feelings but we all need to tiptoe around their delicate sensibilities. People who I like can take the most phenomenal liberties, and I'll answer to anything!