Regardless of whether lightning is better than USB-C or vice versa, I am more worried about the general principle. The only organization that has a track record of building smartphones that I enjoy using is Apple. It's certainly not the EU. Thus I want Apple to be able to make design decisions as freely as possible because in practice that seems to result in a good product. I'd make an exception for things that are OBVIOUSLY blatantly uncompetitive (refusing to support modern interoperable replacements for SMS might be in this category, but I don't think what charing cable you use is).
Lightning was/is the most blatantly money grabbing technology ever.
The reason Apple stuck to lightning is not because they liked the design, or because it was superior (it wasn't). It's because you have to license the connector to use it. Every single lightning cable sold, whether it be from Apple or not, Apple made a pretty penny.
Running such a racket at the expense of consumers is bad. Someone had to step in, because it was becoming increasingly obvious Apple had 0 intention of ramping down the money grubbing.