Not at all. We just need to get past the idea that a Defensive lineman must also be a Down lineman. A down lineman is not as important a distinction in a defense as a lineman having LOS responsibilities.
And that standing elephant is clearly playing a D lineman's role.
Second better question, why are they never in a 3 point stance across the board. Why that technique?
Bud Adams told me the franchise he admired the most was the Kansas City Chiefs. Then he asked for more hookers and blow.