40k hours is a little more than 4.5 years. These drives deterministically fail at that uptime (unless firmware is updated) and most servers are on 24x7, so if you run your servers for 5 years, it's highly likely you'd run into this. If you run your SSDs hard and they fail early as a result, then you'd be spared from this mass death. Or if you use three year leases and replace on a schedule.

Now more than ever, five year old server hardware isn't that far behind the curve unless you're on the bleeding edge. I've been looking for bottom of the barrel hosting lately, and there's lots of dedicated servers available with 10+ year old cpus, and probably most of the rest of the machine is a similar age.