If the container doesn't run any workloads, it doesn't cost you anything. Most of the compute i pay for sit idle most of the time.
This is amazing pricing.
The blog post answers this. Containers was built for folks who wanted to move rest of their workloads onto Cloudflare alongside Workers/R2/AI & other offerings.
From my experience, the Workers platform is real popular among indie developers, software shops, and shops building SaaS, who typically want zero-dev ops setup and usually pass down hosting costs to their customers.
That said, compared to new cloud providers like Fly/Railway, the pricing is indeed steep.