Microservice achitecture promotes splitting data cross multiple databases making it impossible to do proper DB JOINs from application code. Then companies buy

Microservice achitecture promotes splitting data cross multiple databases making it impossible to do proper DB JOINs from application code. Then companies buy a solution to aggregate all the different databases in a single "data-lake" (or whatever buzzword is hot right now) so you can do OLAP queries. Without consistency guarantees of course. And I am not saying this is never the _right_ solution, but it should almost never be the _first_ solution