Should we knock down the Mancunian Way?

In 1point1 the future centre of Manchester had been changed by the destruction of a span of the elevated section of the Mancunian Way, with the now impassable remainder of its length converted to a garden in the sky. This was an interesting location at the time, rather than a serious suggestion, but this article about the benefits of removing inner city highways makes me wonder if it could be beneficial.