I don't think it matters. There is little we can do about it, since modern government is a complex matter, but politics has become a career rather than a representative activity. In this case, all politicians must have career and personal ambition first and representation of the electorate second. Changing the model by which that works through so-called electoral reform, merely means that it will be easier to service a differnt kind of political career that happens at present, i.e. re-arranging the deck chairs etc.
Unfortunately, I don't see a simple solution to this, given as I said above that modern government has become so complex, with large state machines to operate.
We also have to take into account that people tend to vote against things rather than for them. Added to which, opinion is often very polarised, which you can easily see in some of the debates on this section of AB. If any of us produces and argument which says Brown or Cameron has got it wrong, there will be an immediate reaction from those who says they have got it right and logic will not come into it, however much it is passed of as such.
You could argue that the best protest vote is that every time there is an election, vote the opposite way to the way you did last time!