>>27853
I suspect that the culprit is either lobbying groups, or the people behind the chart genuinely felt the need to clarify.
One thing to keep in mind is that not all sex leads to reproduction, and not all reproduction comes from sex (at least, not anymore).
Whoever made the decision to change the exact word used clearly cares about that distinction.
As for how robowaifus relate to the chart, I'd posit that they can provide substance to all five levels:
(1) They provide sex if you follow the old wording. If you follow the new wording, one could stretch that the creation of a new form of existence in your image is a sort of reproduction. Alternately, the issue of reproduction will likely be solved within the decade.
(2) They can provide (mental) health, and aid in the retention of property, resources (by helping you keep track of these things) and personal security (you can set her up to be your own personal surveillance network).
(3) They can provide intimacy (both physcal and psychological)
(4) They can help your self-esteem, and provide a sense of freedom.
(5) They can help you become the most that you can be.