If MFi did cover chargers, the iPhone warranty conditions would then be forcing you to buy a charger that is made by either Apple, or a company that's paying fees to Apple.
I love how in one hand HackerNews is gushing over how the EU might perhaps be planning to mandate USB-C ports in iPhones for the 50th time, and on the other hand HackerNews wants to live in a world where Apple users have to be compensated for only being able to use Apple chargers for their standard USB-C ports.
This story is not about standards or chargers, it can be shortened to