He's been playing like this since the pre-season. Granted, he continues to get better the more he plays, but most people chose to focus on the slim chances of his sobriety and thus, the dependability of him on a weekly basis.
He's been very disruptive, and sometimes destructive, to various QB's and their comfortability. He just hasn't been noticed as much due to a lack of sacks. Personally, I think disrupting the pocket and forcing an error on the QB's part, is equally damaging... and on occasion, even more so.
Yes, he's had a few penalties, but only one that I would call a "bone-head" mistake - that being the careless roughing the punter. The others I chalk up to his aggressive play or a blatant/terrible call by the officials; such as the QB roughing on Wentz. I guess if you've been blocked and pushed to the ground, you have to stand back up before you can touch the QB. RIDICULOUS call, but that makes me feel less guilty about the offensive P. I. they called on Goedert