I'm not following the argument.
The robots linked above wouldn't be capable of vacuuming either. My point stands - the world is made for humans, we might remake an aspect of it for new vehicles that provided some radical advantage (as we did with airports or roads, although that would be a much larger undertaking with the level of complexities cities have today). But we're certainly not going to have twenty different labour saving devices roaming our homes, nor are we redesigning homes to facilitate such robots.
So if we do see domestic robots, they'll have to a) perform multi-domain functions, and b) fit into existing domestic spaces.
Long term, any generally useful domestic robot would have to have a pretty deep capacity for autonomy across a range of tasks - whether it's role specific or not. So it follows that it's much more likely we'll introduce humanoid robots (which already exist, starting at 30K), with the capacity for a wide range of subtle movements, and gradually add skills to them over time.
We already have roombas and dishwashers. I can't see us adding dedicated laundry folders, dedicated chef robots etc. There are social considerations in addition to the level of goofery that having numerous different devices to house and charge would involve.