That was my point, the Move Engines are nothing more than SPUs were on PS3, people are talking like they are some super special silicon that is going to boost GPU performance, at best they will offer "free" antialiasing. They are mainly there to get around the slow bandwidth of the DDR3 RAM.
The PS4 has beefed up ALUs on all the CUs of the GPU, so physics is moot.
Don't be ridiculous it's not moot. You've 1) just eliminated any memory bandwidth advantage, based on your words, which would be situational anyway, 2) Anytime you free up the GPU to do more GPU this increases overall performance, the SPUs were just too hard for many to utilized, and 3) beefed up ALUs or not, if you can offload the physics, that would leave them to do even more!
Only real world performance will tell, just as was the case with this generation.