Whole lot of nothing.
This isn't about payment technologies, it's not about isolating transactions, it's about scaling the middle layer. What's worse it's not even explained what middle layer does.
No info on how routing works, no info on data synchronization.
Folks just learning Kubernetes and write extremely abstract stuff.
I agree, confusing and it seems like they are using the coined word "cell" to describe "container", but they really should say that instead of making up new words.
The problem is there is no incentive to talk about things in simple terms, in both companies and academia. If you make your work look simpler, it is assumed it is easier and thus your contribution is less. There are incentives therefore to make your work look more complex than it is.