So, having this kind of directive doesn't block special products, nor has any specific impact on the field evolving healthily. If anything, without this kind of regulation we'd probably still have 95 different charging cable standards.
Apple didn't quite got an approved exception, the previous agreement on micro-USB was essentially a non-binding agreement between the industry and the EU. With the heavy implication that if it's not adhered to, then the EU will make it a regulation or directive.
Apple adhered by letter by making chargers USB and the phone not have USB, contrary to what the agreement wanted to achieve in spirit.
The EU approving this directive is simply the logical end conclusion of apple (and some small fish) not playing ball when asked to.
So, having this kind of directive doesn't block special products, nor has any specific impact on the field evolving healthily. If anything, without this kind of regulation we'd probably still have 95 different charging cable standards.