I think both GCSEs and A Levels are difficult in the wrong way; you have to learn and regurgitate a lot of information with very little emphasis being placed on independent learning, engaging with the material, originality, debate, creativity, appreciation of plurality of opinion ... all of which are the most enjoyable aspects of learning and are key to studying well at university.
So, yes, the qualifications need to be changed because in a sense they are 'too easy' in that you are not challenged to think for yourself: this is most plainly demonstrated through the existence of 'official' AQA-sponsored textbooks which you basically just have to learn by rote to 'hit the assessment objectives'. However, I would never belittle the hard work/achievement of young people who are currently studying for these qualifications and are encouraged to play this crazy system.
So let's make GCSEs and A Levels 'easier' in the sense that we should expect less of pupils in terms of remembering information without engaging with it, 'more difficult' in the sense that we should expect more of pupils in terms of creative thought... and by doing so make these qualifications all the more enjoyable and beneficial.