No, it doesn’t mean leaving the EU. It means nothing. It’s a bull**** hashtag that it isn’t even a word and that literally doesn’t mean anything. You may think it represents leaving the EU, leaving the single market, ending freedom of movement etc…… but it doesn’t.
The quote you put below is better. This at least implies that those significant aspects of membership will simply be ended rather than amended. It still doesn’t say it but it does at least imply it. It is better, for example, than ‘leaving means leaving’ which would simply be another way of avoiding the question.
Quite frankly, the ‘it’s obvious’ angle is rather stupid. Nobody has ever witnessed a situation like this before- nothing is obvious, nothing can be taken as read, nothing is implicit. People quite rightly want to know what Brexit is going to look like and our idiot of a Prime Minister has spectacularly failed to address it.