Because nobody uses mongo for the reasons you listed. They use redis, dynamo, scylla or any number of enriched KV stores.
Mongo has spent its entire existence pretending to be a SQL database by poorly reinventing
everything you get for free in postgres or mysql or cockroach.
Mongo has spent its entire existence pretending to be a SQL database by poorly reinventing everything you get for free in postgres or mysql or cockroach.