I admit, it's very impressive and cool to see in person, but at what cost? This particular instance has taken away someone's job. There is no human remotely controlling it. Now imagine how many of these are currently out there and will be deployed in near future? For each one there is someone's income being taken away. Sure, we can argue that this autonomous machine has create jobs becuase, some had to build it. Yes, it's true, but those hired to manufacture are fraction of the lawnmowers needed to cut grass not one but throughout the spring had summer seasons. In a broader context, this is becoming an issue for many low skill jobs and essential jobs. (i.e. self-checkouts at fast foods and other retailers, security posts in airports, malls, etc.) Look up Amazon Digit to see what amazon is up. While many will find it beneficial and this is really hurting the class that needs the money the most, needs the health benefits that comes from there income.
Mowing lawns are boring and you look at it the wrong way. In a better future less people have to work their ass off, enjoying more free time to do whatever they want to do. Maybe spend time with your kids, go out fishing, hiking, do whatever. This is a future I want to see and the more jobs "lost" to robots, the better.
Now for this to be true there have to be large changes in how everything works. Basic income is one thing for example. Nobody should be suffering over not working their ass off but we are not there yet and today exactly as you say, there is probably someone who doesn't need more money just getting more cash in their account instead, sadly.
I share this sentiment, however, you are talking about the system wide change. This is a long-term solution or a mid-term with revolution. I am talking about in the context of the current social and economical environment where no such system exisit. First there needs to an effort to more towards eliminating human labor for the benefit of the people BEFORE human labor is eliminated. Corporations and the rich do not care about the former. We cannot fall into this trap. AI and autonomous machines can be great for society as long as it is not at the cost of the working class. Technology is there or fast approaching, but society is not, policies are not. Corporations are.