Because it is a case of corruption that is quite irrelevant at the Spanish level, much less at the European level and totally irrelevant at the global level. Villarejo is an ex-policeman who is blackmailing public figures to avoid a long prison sentence for corruption and bribe. He is a very basic blackmailer and the article at BBC is some PR to give some air to his judicial defence. It is certainly not a relevant/interesting/cultural article for HN.