Tsipras knows this well, they all do, just reading the document is clear they are purposely giving in. Tsipras will step down, and a revolt will come down the line. So Grexit is pretty much certain.
Huh? Tsipras could initiate a Grexit right now if he wanted. Arguing that the referendum gave him the authority for that is much, much, much easier than that. What you are suggesting makes zero sense to me.