Plus, even if one spouse is doing the bulk of the cooking and food preparation, that doesn't mean it's a good idea to ignore reservations expressed by the other spouse about how it will go over with his family.
There definitely comes a time when the person preparing the food gets to make the decisions, but two months before a holiday when the menu is still in the planning stages is not that time.
If it were me, the only reason I'd ignore my husband's thoughts about what his family would think that far in advance is if I fundamentally didn't care what his family thought. His opinions might not ultimately have any affect on what I end up planning to cook, but that far in advance, I would at least give them due consideration.