I see a huge downside. Jesus was a Jew. The whole Crucifixion and Resurrection are closely interwoven with the Passover holiday.
We need to understand the roots of Christianity and understand Judaism. The whole idea of confounding Easter with the vernal equinox just reeks of paganism. It comes after Passover.
Yup.
Plus, I wonder if Francis realizes he’s also messing up Mardi Gras.