Oh, I don't think anyone disagrees with the idea that the LW should invite whom they want to their own shindig. I think we're all snerking at their awful reasons why. Right for the wrong reasons and all that.

(FWIW -- this is not a criticism of you and your partner's decisions at all -- I'm not Jewish and I have been honored and delighted to be invited to Seders by the Jewish people in my life.)