Yeah, it bugged me too.
The click 'n' drag control isn't the end of the world, but i'm uber lazy and without a gun in my hand or a football at my feet it felt weird to be controlling Guybrush's movements so intimately. That's just me though.
It doesn't help that I, like many these days, am playing on a laptop with a touchpad. I hate touchpads for games because they're so much more faff than a normal mouse. Then again, I very rarely have a laptop on a desk where I can use a proper mouse.
We'll drink beyond the boundaries of sense
We'll drink 'til we start to see lovely pink elephants
Inside our heads, inside our beds, inside the threads of our pyjama legs
So don't shoot 'til you see the reds of our eyes
And an army of elephants marching behind
From the day I was born 'til the night I will die
All my lovers will be pink and elephantine!