It's the classic trade-off of cost vs benefit. In places I've worked, the benefit has been worth it. The kind of add-ons mentioned in the article are in keeping with the decision for the orchestrator (which is already complex) not trying to do absolutely everything. I feel that is a good thing.

It's kind of like an API gateway with traditional microservice instances. If you have DNS and load balancers pushing requests directly to your services, you might wonder why you would ever need such a thing. Until you do.