One big reason was it was common knowledge that nobody ever won appeals at the old Board of Review. Here is a good piece on the topic by Stephen Wilson at Bradley Arant Boult Cummings LLP of Jackson.
Here we are three plus years out and I have noticed no real difference in the operations beyond the name change. That said, even though the old review board was considered the Mississippi equivalent of the fictional Kobayashi Maru test there is at least one practitioner in the State of Mississippi that managed to beat the Review Board:
Little ol’ me.
Consider this an open thread.