Its a click bait headline, seemingly doing its job. You have to shout to get noticed...
I quite like his photos, so whatever method he is using, he's getting the results he wants.
The zone system is just one way of doing things, not the only way. When you read about it online, there are clearly some very talented photographers that use the zone system to good effect. There are also a lot of pretensions wannabes that like to show off their superiority over those of us that dare not bother 'placing' our zones. They often use technique and theory to mask the fact they can't take a decent photo ;-)
For me, the zone system makes no sense unless you are using sheet film. The workarounds for 35mm or 120 just seem like excersises in complicating life for no reason. YMMV. If you enjoy the zone system, great, that's what it's all about. But some of us get the results we want without it.
If I fail to get a printable negative, it's usually down to perosnal stupidity (recently not noticing I have my camera in Bulb mode seems to be a recurring theme!) not because I haven't used the zone system.
But the method the photographer referenced in the OP uses is one he's worked out for himself through his own experiences and tests. That's quit Ansel Adamsy if you think about it
The headline is to be ignored. It did its job getting us to look at his article. If he really feels the zone system should be abandoned by everybody, he is as absolute as AA was back in the day, a trait of AA I don't admire.