I think its important to note (in case you guys didn't pick this up already) That these cables are not dividing traffic, in Michigan we have about a 20 to 50 foot median with either forest or a large ditch filling this space. In areas where the traffic is close there are typically 6 foot concrete walls (they add additional concrete to the top of normal concrete dividers) Thus, we had no need for these.
I live in NW Ohio, and I drive in Michigan from time to time (admittedly, not anywhere near the Upper Lower, let alone the UP - so the parts of Michigan that are basically uninhabited, well... nobody cares about those areas

)... you think a 30ft median is enough to stop someone who has no idea how to correct when suddenly without traction and careening across 20-40ft (most medians I have seen, on average, are not much more than 10m at most - which is nothing for a vehicle at speed out of control. grass doesn't offer that much resistance).
We've got similar medians on some roads throughout Ohio.
No solution is perfect. Stop looking for the holy grail of solutions - something has to give, and somebody has to make minor sacrifices. It's that way everywhere, we all bitch and moan, but in reality, we wouldn't like any alternatives.
Highways, traffic flow, right of ways.... none of it is your right, it is a privelege - it you have to suck it up and deal with minor issues on the roadway. You'd really hate some asshole careening across the median and slamming their H1 or H2 into your sedan and, while you live, you lose a girlfriend/wife/child who was a passenger.
Until then, you'll bitch and moan, as everyone does. And you'd bitch and moan if you knew they thought of this plan, decided not to put it into action, then bam shit happens.
There are multiple angles from which to look at these things. A lot of considerations makes it impossible to make everyone happy in most instances, and the people who probably should be most happy will never know how lucky they were (figuring when lives are saved year on year because of these things, that means someone who was "destined" to die has continued everything without a hiccup, never knowing what could have been).