I would imagine the gcse poetry syllabus has something to do with it, if my dd is to be believed. She thinks it is utterly mysterfying and almost completely pointless. She's predicted 8s and 9s across the board. I'd hate to think what mid or low attaining pupils think of it.
Likewise my son who did GCSE last year and got grade 9s in all subjects except English, including all 3 sciences, History, Geography, German and Maths, so basically good at everything else academic.
He hadn't the faintest idea what was going on with all the poetry they had to do, he hadn't the faintest idea about the Shakespeare play they had to study, nor, in fact any of the other books etc. It all went over his head. I just couldn't believe how much both Lang & Lit was about fiction - there was even poetry and prose in the Eng Lang exam, but very little "real life" English. When I did my exams, fiction and poetry was just on the Lit paper and the Lang paper was a factual comprehension, a letter and a persuasive written piece.
Not helped by a really crap teacher who was about to retire and spent most of the lessons talking about how things used to be rather than actually teaching the poor kids what they needed to do to pass the sodding exams.