It's simple. They seek to hold the body for ransom.
I think you are right. There were several threads posted recently that extolled the one thing that supposedly sets Catholicism apart from ALL other Christian traditions and they hang their hats on that one difference - the Eucharist. This doctrine is proclaimed as THE major reason why every Christian MUST be Roman Catholic because no other can impart the right kind of grace needed to gain salvation. All evidence to the contrary that proves the early church did NOT receive this exact doctrine from the Apostles nor Scripture is typically ignored. Sadly, from the looks of a few of the stories posted, some people are roped into the charade. One even was used where the woman who converted was denied the Eucharist because of her husband's un-annulled marriage, and she was okay with that! Imagine that! Leave your church for another that won't let you participate in the one thing they insist can give you eternal life. The term "captive, silly women" comes to mind.