I was told the website was displaying incorrectly, that the 10kg carry-on and checked bag were included. However, I was told that I had to pay for a seat assignment. I thought at least some of the cabin was free and the seat map on EF isn't very full.

Edit: I just called again and this agent was able to assign seats for free without issue, and he reconfirmed the baggage inclusions. So all good for our flight in a couple of weeks.

Good to know, thanks! It'd be nice if this were documented more clearly somewhere. I guess if Aer Lingus had it on their website it would cannibalize their direct sales.