And untangling a monolith tends to be much less problematic that untangling a bunch of microservices. For one thing, you can refactor/untangle it all offline, do your testing, and do a single release with the updated version, as opposed to trying to coordinate releases of a bunch of services whose interfaces/boundaries were poorly defined.
The same folks aren't going to magically learn how to do distributed computing properly, rather they will implement unmaintainable spaghetti network calls with all the distributed computing issues on top.