And they are probably setting themselves up for a similar fate in the future by replacing them all (failed and working alike), and at once.

They don't fail that reliably, unfortunately. It's not a light bulb with a certain number of hours on it. See Backblaze's drive statistics.

Edit: I just saw it's about ssds and not hdds, but while Backblaze might not have stats on those, I'm fairly sure my comment still applies. Not 100%, but I assume they account for failures due to predicable issues like write wear.

>I'm fairly sure my comment still applies

There are other comments in this thread that go into this, but your comment doesn't apply. Another poster used the light bulb analogy well to describe SSD failures.

It's very common to see SSDs that were purchased at the same time, that were likely manufactured in the same batch, fail within hours of each other. Im' pretty sure I even read this fact on Backblaze.

At least they should try and get from different vendors/models

How?

I mean, I can see a power issue taking out all at once. It could be that. What other way would 3 disks fail at once?

All SSDs were from the same batch and had the same amount of writes on them and all failed in a very small window. It's a known issue with consumer drives.

Good to see that I'm not paranoid for explicitly using drives of different vendors in my RAID at home.

Luck? And hence it makes the news because such bad luck messes things up? We all know drives fail, I'm not surprised this happened somewhere on the planet. I would be surprised if it happened to me.