You fail to understand the difference between a feature having perceived "universal value" and that same feature being applied universally in all price-segments of a device. These are, and I cannot overemphasize this, two different things!
You stated that you "struggle to see how cost could be a factor here", so in good faith I was trying to give you an insight.
There is universal value in OIS, as everyone takes pictures while holding the device in his hands, yet OIS is not applied universally in all price-tiers of devices. The reason is COST.
So you wanted to shift the conversation, claiming that it's not a "serious, honest and accurate" comparison, without providing any reasons for that.
Again, I walk with you, I respond to what you're stating.
Now it ends with you starting the straw-man argument of how obviously great this feature is and asking how despite all experience I am not capable to see that.
See, it doesn't matter if _I_ see universal value in this feature or not, the topic was why I consider it unlikely to become a commodity.
You tried to move the conversation to this straw-man argument, and doing so in bad-faith. That's why our talk ends here. I give you my side of this conversation so you may read and grow from it, but this is entirely up to you.
P.S.: You also seem to misunderstand what this feature is. It's NOT picture attestation as you put it.
Picture attestation means an entity confirms the connection of a picture to something else (some "metadata"), e.g. a picture of a person to an identity (Name, ID,...) or a place. This attestation party can either be a person (self-attested) or an official entity (e.g. a government).
Nothing in this process changes with this Apple feature, because all it can do is confirm that the picture was taken by the camera as-is, but the attestation to the external metadata (WHO this is, WHAT this is, WHERE this is) still needs to be done by someone else. A party trusted enough to vouch for this.
But let's end this here. Have a good day.