Everyone in these comments appear to be missing the point of the article. The author is not trying to redefine the second or use different units.
The point of the article is:
> aimed to eliminate both minutes and hours
The author is simply trying to track their day using nothing but seconds. The current definition of the second. The author uses the "myria" prefix to mean 10,000 (instead of kilo or hecto) but it's otherwise simply using seconds.
Why use the second? Because it is the SI unit for time. It is the unit that all scientific measurements use but we rarely use it to schedule our lives. It's an experiment, nothing more.