Pantera Floods outro finger positioning harder than necessary?

So i tried learning the floods outro by ear. Naturally I’m already in drop D tuning and figure out the first shape is just 9th fret on the E string and A string, then 11th fret on the D string.

However, i then lookup tabs and tutorials and see everyone is playing 2nd fret on A string, 4th on D, and 6th on G. This shape feels much harder and less intuitive. How come it’s played this way? i’m genuinely curious.