I wouldn't say they have given up on JPRA as it goes down for lengthy and expensive refurbs every year
However, JPRA will always have AAs that were built in another time period, and it will be forever locked in a previous time period technologically
It hits me the same as Spiderman 1.0. Universal did their best to keep it running, but there's only so much you can push old film projection
JWRA, for all its fan maligning, includes AAs that I'm sure are built better, more robust, and with tech that has come a long way sense.
I'm for the change over because, really, minus the name, it's basically the same ride
If they decided to retheme the land to Kung Fu Panda or something, then I would have some serious concerns