Any clue how much Apple earns thru licensed "Works with iPhone / Works with iPad" text on charging/data devices? They're not going to go want to give that up.
The smart plan on Apple's part is to build a USB-C to Lightning dongle adapter (as flimsy as possible) and include it with every iPhone, iPad, etc. and then sell a small, better quality one (that is very easy to lose) for $19.99.
The EU resolution says it has to be a common charger connector, it doesn't say all data, audio, video, etc. has to work, so Apple can stick with Lightning (until their partners convince them that its time for people to buy all new accessories again) while still allowing USB-C charging.