Bullseye came up in conversation when Frank confronted Matt about Foggy's death at the end of episode 1, and Matt's reliance on the system instead of taking matters into his own hands with violence. Of course, Matt did push Bullseye off the roof of Josie's bar, but he's keeping that detail from Frank – for now, at least.

Daredevil: Born Again brings Jon Bernthal back to play a comic accurate Punisher that redeems his divisive Netflix version.

What's more, as Bernthal puts it, Matt is fully aware of this distinction between them, and is bothered by it, while Frank has no issues with letting his instincts run things. And by "run things," I of course mean "shoot everyone's kneecaps and split someone's elbows in half." Frank doesn's fuck around with bendable joints.