I think the speed he runs in at, coupled with having a very angular frame and leaning heavily to the right, mitigates against any kind of shot down the middle, never mind one requiring as much delicacy and precision as a panenka.
I’m afraid Haaland’s poorish record from the spot is just a reflection of the fact that he hits everything either bottom left or bottom right and if the keeper goes the right way he’s got a 50/50 chance of saving it. Compare and contrast with Goofy at the Swamp, or Cole Palmer, or, in days gone by, Balotelli, who not only had 3 options instead of 2, but could throw in a pause to get the keeper to commit before then trundling it into the opposite corner.
Either way, he needs relieving of the responsibility