Originally Posted by
fradoc
...and it is remarkable that LH recognised the (theoretical) higher value of an u/g over an award for a certain group of travellers....
I reckon it also originates from the <2006 time when coach travel was filthily cheap and incentives had to be set in that direction.
Of course these days when the Y cabin can only be had for a leg and an arm, upgrading at these conditions make nearly no sense anymore.