The advantage of the new approach plate display is in split mode the thing is actually big enough to read. The old full plate view usually required zooming in, at least a little, and then scrolling around the plate to the area you needed to see.
We've discovered that in split mode you can also zoom to either the top or bottom part of the screen independently.
You tap once in the part you where you want to zoom which places a blue border around that part. Having done that, the +/- zoom buttons in the upper right hand corner will zoom just that piece of the plate.
The 3 of us on my airplane didn't like the new FliteDeck format at first either, but we've grown to like it after figuring out how to make it work.