If Tesla said they'd begin to enable self-driving functionality and released a feature that you complete some part of that like parking for you, or bringing your car up front (with the assumption that more features will come in the future), that'd also be completely reasonable.
I don't understand the jump between "beginning to enable full self-driving features" and turning on full autonomy in any near future. Obviously, Tesla has been releasing functionality piecemeal when they can; see: "features".
[EDIT: Given the medium and proposition, the appropriate interpretation seems to be the narrower one.]
What this means is that a large number of people are going to be deceived by statements like this from Musk, even if you think what Musk is saying is technically true, because they interpreted/misinterpreted Musk's statement the same way rayiner did.
Even limited full-autonomy seems totally out of the reach of Tesla given what we know to date.
That would be correct if the Musk quote said they would "begin to enable" full autonomy. That assertion is distinguishable from beginning to enable features related to autonomy.