To some extent 'norm' you would be right (I don't accept the hero bit though) with ref to ease of operation between piston & turbine but to over torque a turbine donk & ruin it was far more expensive than any piston engine damage so hence the greater experience req'd was the level of the bar of the day for that alone & to some degree insurances req's also. Now whether that's all right or wrong is a personal belief.
My 'ideal' hrs as I mentioned for types was what was generally also the norm years ago,remember I didn't make those rules I just happen to see the merits in them now more than way back then when I bowed to a pilot who had a 1500 hrs & flying a beat up old Aztruck, they where my hero's!!
Wmk2