Ruben has said numerous l times this movie was going to be unexpectedly funny in a lot of ways. He’s called it a buddy action comedy with some horror elements. I posted a video earlier in this where the ScreenJunkies crew reference their interview with him. Here’s just one time he’s said something of that nature
“To me, he's this perfect balance of the most scary, intense, menacing figure, but he undercuts it with a sense of humor, these great lines in the comics, and he has that goofy tongue, so there's this unexpected lightness to something really dark, and that's what we tried to embrace with the film. We wanted to obviously make it dark and scary and a thriller, but also make it really entertaining, and fun for audiences. There's an unexpected, I think, amount of humor in the movie, and I am really proud of just having made something for fans, and just general audiences, to just go to the theater and enjoy.”