All good points. He just fails to even get close with most of his shooting. Even Cenks 1st goal of the brace he scored was because DCL missed an absolute sitter. You cant teach a striker to score. Its natural and instinctive. He just doesnt have it. Will be very good at everything else besides his most important job.
I think that's the key though isn't it. He's not a striker really, he's more of a forward player who sometimes gets in and around the box and will bag a goal every now and then.
He's just not the player Kane is as when he was coming through he got dogs abuse from shooting miserably from anywhere and got shunted down the leagues to hopefully refine it, which he did. DCL has good technique, athletic physique, a willing runner but you won't find him in and around the area looking like he's desperate to get on the scoresheet. Maybe it'll come with time and experience.