A shitty default, no doubt. But it can be changed easily. And "most" drivers offer that. And you usually connect to MongoDB using a driver.
Wait they are promoting this as a database. It is right there in black on yellow "database". I don't know about you but I suspect most people expect databases to try their hardest to protect data. That means also having safe default. As in when I install it and put data in it, by default it should try hardest to make sure that data doesn't get corrupted. If it doesn't, it doesn't deserve to call itself a database.
> A shitty default, no doubt.
This is not a "oopsie" this is a deliberate lie and misinformation in order to produce fast benchmarks.
Defaults usually don't get changed, convention over configuration, etc.
So it does happen.