First of all, the new visa is being advertised on blogs targeting digital nomads.
https://www.travelinglifestyle.net/thailand-has-announced-a-new-easy-to-get-visa-for-digital-nomads/
The new visa targets digital nomads, remote workers, freelancers and others who want to live and work in Thailand for a period of up to 360 days.
Second of all, the magic number is 360. It sounds like you can stay a maximum of 360 days TOTAL in 5 years.
You cannot keep re-newing it for 180 days at a time indefinitely. It can only be renewed once during that 5 year period. 180+180 = 360 and then that's it.
It can be back to back. If you do it back to back, you can stay a full year minus 5 days, but then you've exhausted the visa during the 5 year period.
The question is then .... can you buy ANOTHER DTV visa that overlaps that 5 year one or do you need to wait until the 5 years expires to be eligible for another one?
I'm guessing you cannot reapply until the 5 years is up. So digital nomads would need to combine this visa with other digital nomad visas in other countries and keep bouncing around from country to country.