> Shrimp states that Apple will limit data and charging speed for cables connected to iPhone without the MFi certification.
To me (and I'd wager it's the same for most folks), that's Apple implementing a technical block on the cables separate from their actual capabilities.
With respect to the cables, that's part of the USB C spec. Not the spec to which you are referring.
The whole point of the E Mark is to signal that it is safe to send otherwise dangerously high speeds and wattage down the cable. So they're just saying that they promise to follow the spec for cables they certify.
Now the accessories, you're right, but I don't know the rules for accessories. I do know them for the cables.
Remember, a USB-C cable not just a bunch of wires hooking two connectors together. It's two SOCs which negotiate the cable's capabilities with the devices on either end before allowing the flow of power or data across the cable itself. In fact, there is no spec on what the cable itself consists of - it could be a fiber optic cable for all the USB-C spec cares.
It's why you can use an expensive DP USB-C cable and not get thunderbolt support - because the chipsets in the cable itself have to support the thunderbolt spec.
It's why it's entirely plausible that Apple can specify that you can only use MiFi compatible cables if you want full charging or data transfer capabilities.
"Janky" is inserted by you. I can use high quality cables that aren't certified and perfectly capable of handling power, and such. With this comes the implication that any manufacturer who is not willing to give Apple a cut of their cable sales is something inferior and subpar.
> They only warrant that if you use the certified cable, your phone won't blow up.
I guarantee you that they warrant no such thing. And that they'll point you at the cable manufacturer if something damages your phone.
The only thing being codified here is that if you happen to use a janky cable Apple didn't certify, the results are on you.
All that, to my mind, is totally reasonable. You can use a certified cable. You can use a non certified cable. The consumer is totally free to make any choice s/he chooses. They only warrant that if you use the certified cable, your phone won't blow up.