It indicates that "the dangers of cloud-enabling cars" are in fact "justified by the features provided" for a nontrivial number of people.
1) The features provided by Tesla extend far beyond those provided by "cloud-enablement"; the fact that "informed consumers" are buying the cars does not indicate that their purchasing decision came down to isolating cloud-enablement relative to cloud-features.
2) Your hypothetical informed consumers don't really exist, unless the only people buying cloud-enabled cars are computer scientists.
2) Ever looked at a tech company parking lot in South Bay? A lot of people with CS background are buying the Model S. Not all buyers are computer scientists but informed buyers most definitely do exist.