Fair! I think his opinion, at base, is worth discussing. He's just being super sneaky about it like he lost his humility.

If he just said: "I have a lot at stake and I'm afraid of bitcoin changing, so I won't fund protocol development and I urge all my friends to not fund it as well. I believe changing bitcoin threatens me, my company, my shareholders, and other bitcoiners. I know this is contrary to the way some people think about the protocol, but I'm open to feedback and having my mind changed." I don't think saying that would matter much, it'd be honest, and many would agree with him.

Instead he talks about aeronautical engineering as if introducing OP_CAT is like building a plane with its wings upside down.