Is your complaint about the tone of the last paragraphs, or about the content?

In case you are wondering, yes, I have a low opinion of the SI. I think it's unlikely that they are competent to achieve what they claim they want to achieve.

But my belief may be wrong, or may have been correct in the past but then made obsolete by the SI changing their nature.
While I don't think that AI safety is presently as a significant issue as they claim it is, I see that there is some value in doing some research on it, as long as the results are publicly disseminated.

So my last paragraphs may have been somewhat confrontational, but they were an honest attempt to give them the benefit of doubt and to suggest them a way to achieve their goals and prove my reservations wrong.