It's seder time again

Every Lent some dear, nice Catholic announces that they're going to either a Christian seder at the parish hall or visiting Jewish friends and seeing a real seder so they can get closer to Jesus. Something about this always seemed a bit off to me  but like most Catholics my age I wasn't taught enough about traditional Church teaching and could never articulate why Christianized seders just didn't seem right. If you've ever been in that spot,  this talk by a priest posted at the very fine site, Audio Sancto. can help.