But isn't it also a given that tires are squishy and don't have an infinite coefficient of friction that while rolling allow some slippage between the front and rear?
The last time anyone had a little fun and wailed on the gas to peel out, did the diff, driveshaft, transfer case or transmission 'splode or did the tires squeal and burn a little rubber?
I grant that there will be more wear since parts will be under load but I have never, in my 2 decades of off-roading, experienced a drivetrain binding up to the point that parts broke while driving in 4WD, on asphalt, in a straight line, in excess of 10 miles.
Physics mang. No infinite coefficient exists, only finite possibilities. Jones and Childers reports on coefficients of friction reflect to average approximately 0.7 for dry roads. On dry surfaces you might get as high as 0.9 as a coefficient of friction. In the posed situation, it would likely not to any substantial harm to a 4WD system. But damage is possible.