Showing you know nothing about election mechanics. UKIP scored almost in line with the polls in Clacton, but they outpolled in H&M by 9% and almost took a seat in a Labour heartland. The latter is the bigger story. Douglas Carswell was the sitting MP, a safe option for locals, his win is not surprising in the least.
You do realise this is a by-election, yes? and that larger parties typically do worse in by-elections? Labour winning is reasonably good news for them. It implies that even in fairly typical pro-UKIP areas, and demographically Heywood & Middleton is definitely such an area, and even under fairly perfect conditions (low turn-out, by-election), UKIP isn't taking seats from Labour. If they can't do it now, under these perfect conditions, they won't do it at the general election. More-over, UKIP dragging Labour down to the point they are defeated by the Conservatives, like Dan Hodge was predicting (lol) hasn't happened, because Conservative defectors to UKIP outnumber Labour defectors to UKIP by a big margin. Instead, UKIP makes it more likely than before Labour wins marginal Labour-Conservative races. In addition, the Carswell news is definitely big, because Carswell did not win by in line with the polls, he won by a larger margin, which means the Conservative defectors have a bigger incentive to defect
now rather later, as they can win thanks to the fact that by-elections favour small parties, then entrench their incumbency for the General Election. If you genuinely think today was worse news for Labour than the Conservatives, then you're clearly not thinking right.