There is basically no way of redrawing those boundaries that is apolitical. It may not be a "diabolical plot" but constituency size is not all of it. How you alter that inherently alters vote distribution in a FPTP system, and as such it is a major problem.

Even if you supposedly makes it fairer by evening out constituency sizes, and even if the people doing it are trying to be fair, the net effect due to the electoral system can very easily be to disenfranchise the voters even more.