I posted the video above since everyone was freaking out (at least on 2GFusions) about the first 0-60 and 0-100 videos where the RPMs don't change for a sec. Was simply showing it does this after a few seconds and seems to be programmed into the trans, rather than when you get off the gas like most cars.
At first some were thinking it was an engine thing (my buddy's '17 WRX does this at 75MPH, manual trans tho, and is emissions related). It is normal for the torque converter to lock for fuel economy reasons.
To be honest I like it, it makes the car feel more powerful when it locks.