It might not be a drop in replacement in all circumstances, but it is in the case under discussion. I don't think anyone in this discussion would support using

It might not be a drop in replacement in all circumstances, but it is in the case under discussion. I don't think anyone in this discussion would support using primary/replicant for IDE busses, and bringing them up here is really just a straw man. You can't avoid ever offending someone, but in this case you can reduce the amount of offence caused by a small but significant amount at basically no cost.