The design of the EAP at the present stage inherently makes drivers complacent. This is human nature we're fighting with here. And in fact this problem will get even worse as EAP improve, because as human intervention becomes rarer, the driver will be even more likely to lose focus.
Tesla seems to be willfully ignoring this (at least publicly they are), and most fanboys on this forum are only too quick to point the finger at the drivers when things go wrong. But things shouldn't be that simple. Tesla has responsibility in the "usability" of the feature, and can do a more to make the feature more intuitive, less error-prone, more foolproof.
Put it another way, if "user error" crashes are frequent or likely, then maybe the problem is with Tesla in not understanding how real users work, rather than the fault of all the users lured into making mistakes. That is, the feature is poorly designed and difficult to use correctly. This is not a right/wrong issue, but what could be done better to improve safety. (A similar example: I know that requiring users to press brake before shifting from P has prevented a lot of sudden acceleration mistakes.) I don't think there is an easy solution, however, and I don't have any quick ideas to this off of the top of my head.
