> In the beginning (that is, the 90’s), developers created the three-tier application. [...] Of course, application architecture has evolved greatly since the 90's. [...] This complexity has created a new problem for application developers: how to coordinate operations in a distributed backend? For example: How to atomically perform a set of operations in multiple services, so that all happen or none do?

This doesn't seem like a correct description of events. Distributed systems existed in the 90s and there was e.g. Microsoft Transaction Server [0] which was intended to do exactly this. It's not a new problem.

And the article concludes:

> This manages the complexity of a distributed world, bringing the complexity of a microservice RPC call or third-party API call closer to that of a regular function call.

Ah, just like DCOM [1] then, just like in the 90s.

[0] https://en.wikipedia.org/wiki/Microsoft_Transaction_Server

[1] https://en.wikipedia.org/wiki/Distributed_Component_Object_M...