It's actually arrogant and dismissive because you say that in a way clearly intended to spark a conversation.
Also, pretty much all arguments for explicit typing suffer from mechanistic bias (see, https://www.youtube.com/watch?v=NmJsCaQTXiE&t=143s). I'm comfortable saying I just enjoy tinkering with a formal description of a data structure, because I'm a type enjoyer, not a type fan.
I don't follow at all. Why would it be arrogant or dismissive to say something in an attempt to discuss it? I commented in good faith to an article that has a strong opinion ("willing to die on this hill") with a reflection of my own strong opinion ("unwilling to discuss").
At most you could say it was inflammatory, which wasn't intentional although looking at the insane number of child comments it apparently ways.
That said, yes, of course my post is arrogant and dismissive. I am outright saying I won't engage in a conversation. I'm comfortable with that.