The controls are just one half of the issue, the second is the forced use of a single weapon for two almost diametrically opposing types of gameplay with very little over lap. The air portions is just a straight up shooter, pick a weapon that fires fast, far and hard. Ground combat varied from melee to long range, meaning if you took a melee weapon you would be boned for the air stage while only half-boned on the ground where you slaughtered anything that got close.
It was a blindingly bad design decision that would have been solved if you could have switched to a second weapon. I wouldn't call it hate, it was a massive disappointment with a large helping on WTFness of game design. If I had ten games to list, it wouldn't be on the list or last.
There is a great game in there, but this is how you go about racking up medical bills for mangled hands.