Oliver's The definition of the term dyslexia is very much open to debate. At its core, it means unable to read well. The other things you refer to are, properly speaking, SPLDs - specific learning difficulties. They are often associated with dyslexia, but not always.
As I say above, my daughter has a diagnosis of dyspraxia, along with other SPLDs. Her organisational abilities were affected, her ability to navigate, lots of other things. She has problems with short term memory.
It runs into £000s the things she has lost. Whilst you can keep an eye on her as a child as a teen and now an adult she doesn't remember where she has put stuff.
My daughter has this problem as well. I remember so well the horrible phone call I got when she left her laptop sitting on the bench beside her when she got on a bus at Uni. Thousands of pounds, as you say.
As I said above, I don't think Michaela is 'the answer' for the future of schooling for all children. I do think they are getting some things right, however, and that there are things that could be learned from them. The approach a lot of schools take to SEN - sitting children with their own TAs, and letting them essentially end up doing everything for them - isn't right either.