We don't have much experience with completely alien intelligences. Even with higher primates having so many similarities with us, can't really tell us what they're really thinking.[1] Birds such as crows or ravens are at least as intelligent as those apes, but far different from us. Octopodes are the closest thing to aliens amongst us, coming from a completely different evolutionary branch. QC AIs, though, are going to be less alien to us than even say, chimps, despite having physical stuff that's even more alien than cephalopods. The first AIs did emerge on human-built systems, and had been assimilating a corpus of human created things, culture, thought, whatever. A self-programming computer in this case would probably become even more like us via interaction…
Or, maybe that's what they're letting us believe.
[1] Okay, I'm pretty sure that those monkeys sitting in those hotsprings in the Japanese alps are thinking, and that's "yeah, this is the life"