I don't mind the blocky handles but D4/E4 style would certainly be better.
As it stands I always take some sandpaper/files to all my Byrds when they come in to round out and smooth the handles. Makes a $20-30 knife feel like a $60 knife basically for free. The contouring is a nice touch on the Harrier.
I honestly prefer the handle design on the Byrds to their Spyderco counterparts. The CC2 is basically an Endura 5 as far as ergonomics go and the Harrier basically the Endela 2.