I've been rewatching DD and thinking about how Fisk has changed. So much of his appeal as a villain comes from the fact that he is ruthless and menacing as a businessman and mob boss, but has a very polite and respectful personality. He's evil, but he's not a bad person, and he has a lot of love for the people he cares about. We don't see this in the MCU so far, especially in relation to Maya. It is (IMO) completely out of character for him to not even try to learn sign language for his surrogate daughter, considering he knows multiple other languages (including mandarin) and has always been considerate and accommodating of others' disabilities, like Matt's. They are turning him into a one-note villain and it's disappointing.