No it doesn't. It simply means that funding can go in the direction of a wider choice of education. I explicitly said that funding to the same level that would be spent to educate a child in the public sector could be directed to a private sector school and the parents could top it up.
That simply re-establishes a financial equality. As it is, the system is very restrictive and inappropriate. Parents who are willing to additionally fund their children's education have to pay for a state education that they don't use and then pay again out of taxed income to achieve what they believe is right.
There is no madness in choice, unless you believe that education should be restricted and dumbed down to the least common denominator.
Do you really think that people who fund their kids education out of marginal rate taxed income do so for fun or because they have money to throw away? Almost all the parents that I know who have done this have sacrificed hugely to do so because they simply don't trust the state to do a proper job.