I have this same "issue", though I'm pretty sure it's just the way the engine operates. It's almost like the flywheel is ungodly heavy and continues the momentum after you let off. I've been cruising in 2nd and depressed the clutch to rev at someone before, let off the gas for a sec, then let off the clutch and the RPMs were still high enough to lurch me forward and break the tires loose. The engine is just super slow to rev down.
Same here. My only real pet peeve of this car.
-2012 Grabber Blue GT 6M Premium w/ Brembos, Glass Roof, HID security pkg, Rear Camera, 401a, FRPP GT500 Axle-backs, Front Pioneer TS-D6802R speakers, JHR bracket, Bondra clutch extension.
-1986 Mazda RX-7 GX - Fast Mirage 16" Wheels, Sumo Firenza 205/60R Tires, slotted brakes + performance pads. Otherwise factory stock.
-2008 Mazda Mazda3 GT Sport - Stock, 5MT.
-2004 Volvo XC90 T5 - Comfort pkg, safety pkg.
-1995 Infiniti G20 - Sold, Pioneer head unit, lighting mods, miss it dearly.