You do not need any sync to track into a DAW. Its an option.
You can arm your DAW to start recording and press play on the MPC. I think I know what you are getting at but it is not really an issue. If a vocal starts at measure 4.02.95 and I need to move it four bars...click a few buttons and move it to measure 8.02.95. Or if the MPC records into the DAW and starts at measure 3.02.25 (

)...I can lock ALL recorded tracks so they maintain their relative positions..and move the tracks so that the first beat starts at 1.01.00 within the DAW. Takes a few seconds to accomplish this.
So while I can see what you are trying to say...the issue has never stopped me from doing anything.
...MPCs of the past had MTC that worked perfectly for me. From what I have been told......the 2500s MTC will only work if MMC is turned on....which in the past was unrelated in MPCs and other devices. Hey...I didn't program the 2500 so you will have to take that up with Akai.
As far as the JJ OS.....was the real-time pitch shift really removed? If so, it looks like he is teasing to build up for the paid downloads
