No, it's different from that. If I was making that assumption
It was a comparison not an assertion that you're making this assumption.
1. Power supplies are much more durable and trustworthy parts. Fans aside, they don't really involve many variables like mechanical failure. Sure, there are shitty ones, but even those will work fine to a point. Assuming you look at a certain cut of power supplies the entire market is pretty much all low risk.
Where the hell are you getting this from or is it a joke? There is nothing low risk about the power supply market when the percentage of fake certifications, fake QC and fake specifications is the absolute highest of any type of part used for a PC. The statement that power supplies are universally durable without many variables involved is laughable at best, disgusting at worst. They are only durable as long as you don't try to use them. Incidentally if you barely ever use your HDD, it will also last longer.
Speaking of risk, if you buy a poor quality HDD, it will at worst break after a while.
Buy a shit PSU on the other hand, and you can lose a lot more than the 100 dollars a HDD could cost or the 15 dollars the PSU cost. Personally I've only lost 2 motherboards and 1 graphics card to shit power supplies (power supplies, of which one still works!) and none except the graphics card was more expensive than 50 dollars so I consider myself lucky. No idea how many of my HDDs I lost to that though, haven't tried identifying the failed part on them. I am guessing a whole lot have failed ICs since every single one I've opened up had pristine disks and the spindle motor was more often than not fine.
Hard drives are 1 and 0. It either fails after X unit of time or it doesn't. The user doesn't need to have any technological expertise to report that.
Nothing is black and white. Damaged during transit. Damaged SATA port on motherboard. Power failure from a shit power supply, can't supply adequate 12V to spin up the HDD - rare but possible for it to be accompanied by seemingly normal function of the computer itself.
Shock protection activating and disabling the HDD temporarily which user assumed to be permanent damage. Logic board getting ruined by shitty PSU. etc
You sure as hell won't run out of possible causes for HDD "death" that are irrelevant of the quality of said part. Besides, if you wanted to you could break down PSUs the exact same way. Fails after x period or doesn't: Who gives a fuck about the reasoning, right? As long as fail rate is low enough, I am perfectly good with using the PSU even if it has no transient filtering or has a defective +5VSB design which gives 6.8V spikes on +5VSB after the low quality capacitors fail and slowly kills motherboards like clockwork.
The most important knowledge you should take out of this is that power supply failure can be transparent to the user. It will continue to run your computer while killing off other parts or causing stability issues that can be explained by another part failing, and fixed by replacing it (due to different out-of spec voltage tolerances, for example).
There is bad luck too. Speaking of newegg reviews, a lot of reviews are posted immidiately after purchase and installation and coloured by expectations. "After hearing that WD is the best thing since sliced bread, I bought a WD drive, but it arrived DOA. I think I just got unlucky and I should return it without making a fuss."
"After buying a Seagate drive it arrived DOA, my friend upon being told my story proclaimed that Seagate is a pile of shit and I should have expected that and I saw some people agreeing with him on the internet. I will thusly post a review saying that I got this DOA and replaced it with something else because it was a piece of shit."
Mass psychology!
If you want to take the opinion of newegg apes for any purpose other than information about possible problems and their solutions, then be my guest. You're however not going to convince me that they have any credibility. I am almost tempted to read HDD reviews to see what sort of retarded bullshit they write there while claiming to be tech experts.
Bottom line is, you're arguing for the credibility of idiots. I will grant you that you don't have a whole lot of other options than their feedback for assessing the quality of HDDs but that doesn't make me wrong. It just makes the only choice for decision making advice a bad one.
Both my statement that newegg feedback is full of raving morons and that warranty is not an indicator of quality are true.