Yes, of course. Keeping Greece in Euro is politically unsustainable. Greece is a democracy, they have just voted to get out of the Eurozone - they, most definitely, should be allowed to do so. And it does make a lot of sense for them. In fact, I believe, Greek exit from the Eurozone should be something both the new Greek government and the Germans would find easiest to agree on.
No, we absolutely didn't. Every poll shows that 80% of Greeks want to stay within the Eurozone and SYRIZA went to great pains to assure voters that they want the same too.