I've gone away and thought about this a bit more.
Broadly, I agree with the points put by Maria33. If you are going to have an exam taken by pretty much every child, then you need to set a test, and a set of texts, that mean every child has a fair stab at answering some questions, and can read a fair bit of the stuff they are being examined on. It becomes ridiculous otherwise.
Having said that, my ds has been completely persuaded that literature is crap as a subject of study. Which is a shame. I've done my best, so have his teachers, but he's been through the exam - and the exam is what it is. I can tell him that things are very different at university level - but what does that say? And 'A' level isn't very different from GCSE. Many of the set texts are inadequate as tools through which you can explore ideas and the brilliance of which literature is capable.
Personally, I had too many friends fail under the old system. CSE people spent years ploughing through "A Kestrel for a Knave" because that was what related to their experience, and they needed a looooong time to read a book; the 'O' level élite were allowed access to High Culture, and were set upon the path of critical thinking. It sucked as a system.
But there are some problems with the current set-up. Pretending they don't exist just leaves the goal wide open, I think.
I'm no Gove fan but he is not a complete, irrational, reactionary bigot. We are being naive to paint him as such. There are going to be a lot of people really pleased about this.
I think a better approach is to examine why this is happening, and what is good/bad.
for myself, I think it is a sea-change going all the way through education. I don't think I like it. It seems to be a real move away from aiming to be inclusive. I think it is going to lead to a very horrible learning environment for the vulnerable. I feel we need to work to understand what is motivating people to move in this direction (I do believe Gove is answering the call of a significant number of people). My belief is that fear lies at the bottom of it: fear of a global market-place.
I think these fears, and this answer to them is wrong. But, at present, that is just my feeling.