While I have sympathy with the complaint that SI's critics are inarticulate and often say wrong things, Eliezer's comment does seem to be indicative of the mistake Holden and Wei Dai are describing. Most extant presentations of SIAI's views leave much to be desired in terms of clarity, completeness, concision, accessibility, and credibility signals. This makes it harder to make high quality objections. I think it would be more appropriate to react to poor critical engagement more along the lines of "We haven't gotten great critics. That probably means that we need to work on our arguments and their presentation," and less along the lines of "We haven't gotten great critics. That probably means that there's something wrong with the rest of the world."