Correct: not everyone would care whether they're creating a suffering, conscious being, or think about the topic enough to consider it a possibility. I still think the issue merits being called "relevant" in the context where I mentioned it.
I think the more immediate concern is that we begin to turn over everyday life-and-death decisions (driving, obvs) to machines which are, at the end of the day, unconscious, and programmed by us oh-so-fallible human beings.