It's not a sideline, it's entirely the point. The German citizenry isn't willing to see their taxes go up again to pay Greek debt that was incurred buying votes. The again in that sentence is the important bit. Germany has already raised the taxes on their people to pay the original Greek bailout. They will NOT allow their government to do it again. And it infuriates them to no end that this happened because the Greek government lied about their spending and borrowing and used much of the proceeds to "buy votes" by raising minimum wages, increases pension plans and other electorate appeasing measures that require cash.
For example, the current Greek government refuses to lower the minimum wage. Most people don't even realize that the minimum wage in Greece is almost 50% higher than in Germany! This goes for almost all the items of the bailout under attack. The most galling thing to most Europeans is that the troika didn't even require the Greeks to cut their higher wage rates, higher pension payments and such to match their European neighbors, they only required that they reduce them partially and this is how the Greeks react?
Coming down to reality is hard, they built up a system with purchased votes that wasn't sustainable and it's a big impact to lower down to reasonable values. I personally don't agree with the austerity push, I think it's catastrophic policy with no historical backing and heavy counter demonstrations that it doesn't even work. But, I do agree with the rest of the Europeans that the EU and IMF have been extremely lenient with Greece and to have it thrown back in their face as asking too much is frankly stupid.
But that's the problem with Greece's current government. They should have attacked austerity, not the measures they are expected to undertake to re-balance their economy with the rest of Europe. Many of the Torika's requirements were real improvements that would have been long term very positive for the Greeks economy and some of those are the ones the Greeks are attacking the hardest, rather than attacking the real problem, which is this Austerity idea that you can succeed by cutting spending during a recession. The Greek economy was heavily damaged by the Austerity drive where the measures should have been more targeted towards competition and divestiture of state assets because it was those very state assets and the salaries they included that bankrupted the Greek government to begin with. And this dragging of the feet on everything and inexperience has just created an environment where everyone in the economy is running for cover. The cuts to the pensions and minimum wage levels should have been done with a permanent freeze to increases until inflation balanced them with the rest of Europe because of the direct and immediate damage a large cut would do. The biggest problem the greeks face is a general disrespect for tax collection, that's what government should be spending their time fixing.