Sigh. That link is not a "study", and it's not measuring safety. It's a single test of task completion time run by a
magazine supported by advertising from legacy car brands (mostly Volvo, it looks like). It's designed to do exactly what it just did, get itself into conversations like this so people who don't want to believe that their advertisers' competitor[1] has a good product can continue to believe that.
FWIW: You don't need to go to Sweden to find that stuff anyway, Car & Driver and Motor Trend both hate Tesla too (and for the same reason: Tesla doesn't advertise).
If there are safety effects measurable with Teslas, we'd be measuring safety effects. There are millions of these cars on the road. They are safe. I know it, you know it, the time for hand-wavy hypotheticals is long past.
You need something more. Even Ralph Nader started with real accident statistics on the Corvair.
[1] Tesla