You'll never ever be able to stop bad developers from making poor choices and ruining things. So you have encapsulated services... boss comes and says "we need

You'll never ever be able to stop bad developers from making poor choices and ruining things. So you have encapsulated services... boss comes and says "we need feature X right away". What if feature X spans all of your microservices? The bad programmer will hack together a monstrosity between multiple services. It's the micro-lith problem: instead of a monolith, you have a monolith disguised as micro services. Now their poor choices are spread across a lot of services and distributed, it's not really confined to just one service.