AI has also changed the dynamics around this. Splitting things into smaller components now has a dev advantage because the AI program better with smaller scope

A separated component does not necessarily mean a microservice. It could be its own process, its own module, or even just its own function, which is fine. But microservices bring their own problems.

> AI has also changed the dynamics around this. Splitting things into smaller components now has a dev advantage because the AI program better with smaller scope

This is not AI specific and nothing new and also precisely why microservices are a good solution to some problems: They reduce a teams cognitive load (if architected properly, caveats, team topologies, etc, etc)

Well yea... but the big con of microservices is still a thing: unexpected interactions

But some of that could be mitigated I guess.