It was a standard for Apple devices, I'll concede that point. And therein lies the problem.My point is that you can have more than one standard and lighting, and USBC can both be considered standards. I have no issue with lighting and, I also have no issue with USBC.
Apple is a minority player in every market it occupies, save for perhaps the iPhone in certain jurisdictions. That makes it enforcing an arbitrary "standard" to the contrary of the marketplace as a whole a problem of Apple's own creation. They could've either adopted a broader standard on more aggressive schedule (i.e. still USB-C, but much sooner), or pushed to make Lightning a market-wide standard (at its introduction, bypassing the USB-C workgroup and cutting off the rise of miserable connectors like Micro-USB). They did neither, dragging their feet to hoover up MFI profits, so the EU (rightly or wrongly... you and others might be surprised to hear I'm not generally a huge fan of that sort of market interference) made the decision for them.
My problem with Apple will always be that Apple looks out for Apple first and Apple only. Profit and control obsessed to the detriment of both their customers and the success of good ideas like, perhaps, Lightning. We have no idea how Lightning could have evolved as the one connector to rule all because Apple put its licensing profits ahead of improving the standard. Declaring yourself life of the party and inviting no one else is psychotic and Apple does this constantly.