Not knowing much about economics, I can say little against what you said, but I am not at all hopefull, nevertheless. Living in France, my personal epxousre to the Greek Debt is not around €750 in terms of my tax euros. So who does this new agreement actually beneift?

The answer is certainly not the Greeks. They are going to have to accept a great deal more austerity than was already causing a lot of suffering and their debt load has increased quite significantly. Unemployement will rise and thus Govt revenues will fall. They have virtually surrendeed their sovereignty, both of which will upset the people and already the majority voted against having more austerity. About the only thing that may be counted as a plus, is that they did not have to face the unkown situation of a Grexit.

What did the EU gain but more headaches and having to throw good money after bad and money that could have been better invested? Again the only answer seems to be to have avoided a Grexit. So when the politicians make decisions that it seems the majoity on both sides do not really want, then the usual mess is likely to ensue that can only worsen the situation and perhaps even ensure a Grexit, either by further Greek default/turning their backs, or by the Germans refusing to pay anymore towards the Greeks