The MP8102 is available in a standard SOT-23-5 package used by many other op-amps. In all of the other SOT-23-5 op-amps we have in our library, VEE/V- is always on pin 2 and VCC/V+ on pin 5. In the documentation for the MP8102, these positions are reversed with VCC/V+ on pin 2 and VEE/V- on pin 5. Before we layout as per the datasheet, we wanted to ensure that this was not an error in the documentation.
You are correct, the pinout is somewhat reversed from other opamps in the SOT-23-5 package. Apparently this was done for the MPS circuits utilizing the device, so not a general pin-pin replacement part.