An interesting topic, but as has been said no big deal these days.
Pilots in general have coped with some pretty non linear thrust versus throttle position arrangements over the years without (I suspect) many of them even realising how much they were compensating through training, experience and skill.
By the time the P1127 (Harrier forerunner) started in 1960 it was clear that a linear relationship between the position of the left hand and thrust variation was really needed if you were to be able to control hover height accurately and without real skill. We settled for 0.1g per inch for the hovering range of the throttle handle and crammed the rest of the RPM range up into the length of slot left. There was some debate about whether the extremely sensitive wing-borne range that resulted was a major disadvantage for close formation but in the end people just accepted it.