Arrogance is probably to be found in the way things are said rather than the content. By not using a real example, you've invented the tone of the argument.
It's not supposed to be an example of arrogance, through tone or otherwise. It's a broad paraphrasing of the purpose and intent of SIAI to illustrate the scope, difficulty and nebulousness of same.
I intended Leveling Up in Rationality to communicate this:
But some people seem to have read it and heard this instead:
This failure (on my part) fits into a larger pattern of the Singularity Institute seeming too arrogant and (perhaps) being too arrogant. As one friend recently told me:
So, I have a few questions: