Quality of BBC Chinese?
The example you have quoted is fairly standard "translated text". You can tell it by the usage of attributive clauses, e.g. "...1994年南非结束白人少数统治后出生的...". In natual Chinese, there's no such kind of clauses and hence sentences are usually short. However in translation you have to be faithful to the original context, therefore many English grammar got awkwardly translated into Chinese. Since Chinese has been heavyly affected by huge amount of translated text in last decades, people started to get used to these awkward grammar. Still, it is recommended to avoid it. I recall there's a term coined for it, "translationese".