I am leaning towards considering all these moves by Tsipras' government to be purely tactical ones to stay in power by constructing this legend that the Eurozone has stabbed Greece in the back. It's either that or they are completely incompetent.
We must not forget that there isn't even a proposal on the table over which the Greek people could decide. The document we have is just a list of prior actions that the Institutions required before granting the bailout of the 2nd program. This list was not a complete reform program. And on top of that, it is not being offered anymore anyway. The 2nd program will expire on Tuesday, rendering all discussions about it moot.
Tsipras knows all of this, and he is telling none of this to his people. This referendum is just pointless. Nobody even knows what they are voting for or against. At most, the referendum can only be about a very general and very vague permission to government to move away from pre-election premisses, with no specificity what that really means. Its about keeping the current government in power, not about any substantial issues or solutions.