That is pretty funny, But that video is 11 years old. It can't still be like that? can it? Seems like people are down on Mongo in the last year, and I'm trying to catch up.
WiredTiger was kinda Mongo's InnoDB and has made "your data will actually still be there later" rather more true than it used to be.
I think the key thing is that people using MySQL were having trouble with deep data and found MongoDB's document oriented approach much easier, but these days people are tending to start with PostgreSQL, which can handle that nicely.
(MySQL/MariaDB are far better than they used to be as well, though I find most stuff I read online doesn't take advantage of that as much as it might)
There's also probably a factor of Mongo solving pain points people had when they switched to it, and there being lots of excitement around that, where today the same people have run into the pain points of Mongo often enough that it's no longer nearly so exciting a prospect.
I wouldn't honestly be surprised if we're now at a point where people are -more- negative about Mongo than it really deserves, and I say that as somebody who viscerally hated it on sight and would still rather avoid dealing with it myself it if at all possible.
(oh and MongoDB the -company- has always done their best to be a good corporate community citizen, sponsoring all sorts of cool things as a result, and while I think the license change was a shame I -still- think they're doing their best, just in an environment where they wouldn't have a best to try to do in the first place if they didn't avoid being killed by AWS)
