I would look at distinguishing the dogma from its explanation. You don't HAVE to be Aristotelian/Thomist to believe that that there has become "really" the Body, Blood, Soul, and Divinity of Jesus Christ. After all, between Thomas Aquinas and now the word "real" has undergone a massive change of meaning. For Thomas the "reality" of the idea of triangle and of the rock I just tripped over are very different.
I find Thomas as helpful in saying what that belief does NOT imply as what it must imply. Thank you to Dr. Brian Kopp for this post.
But St. Thomas’s explanation isn’t dogmatic. Eastern Catholics for example aren’t required to use it.
We say it’s the body and blood of Jesus Christ because he said it would be. That’s the way my pastor explained it.