Now, if the machine can all but eliminate the need for the manual job they might sell a few. Because farmers love when shit just magically works because the day only has so many hours in it and one less someone has to stop what you're doing to deal with.
On a more technical note, bulk dry goods can generally be persuaded to follow gravity if you give them a kick start with vibration. This approach has a bunch of pluses (the equipment is very reliable and typically you can resolve blockage by varying the frequency) but I don't know why it isn't used for grain (though it is used on the trucks and rail cars that transport grain). You typically see it in bulk material handling settings where you can't afford to stop the line and/or it's too dangerous to make someone clear a blockage manually so I assume it's a cost thing and farming margins aren't big enough. It seems like these guys went and invented a robot that solves a problem that has an existing solution. But the article doesn't mention why the existing solution doesn't get used for grain and why the new robot will. I get that it's a high level press release but I still wanna know.