The central bank constantly stepping into the breach for elected politicians or even going so far as to attempt to influence democratic processes would lead to a politicisation that could jeopardise its independence. The fact that accommodative monetary policy buys time for politicians is, at best, a side effect, but it must not become the objective of monetary policy decisions.
And how a given monetary policy stance is maintained must depend entirely on what is required to safeguard price stability. My fellow ECB Governing Council members would probably say much the same thing. The accommodative monetary policy can make fiscal consolidation, as well as reforms, appear less urgent. I am thinking here of institutional reforms to make the euro area more stable.