A few thoughts...
1) These most recent interior photos look identical to the instrument panel shown during the unveiling event. Folks who are frustrated perhaps didn't see the unveiling video, or expected changes to the production car.
2) A number of great cars have had centrally mounted instrument panels. My favorite is the BMW Z8. In the Z8, it is arguably even more important to have line of sight to instrument panel (specifically the tachometer since it's a 6-speed manual), but in reality, the layout works great and you can easily see the important information as you're driving. After all, we tend to look ahead to the center of the roadway and scan in 360, rather than solely straight forward.
3) Personally, I like the modern, sleek and uncluttered design of this instrument panel - it reminds me of Scandinavian furniture. What will make or break the experience in my opinion will be the quality of materials. I think this is one area where Model 3 will be a step down from Model S. Regardless of aesthetic tastes, the Model S interior is crazy expensive with all the wrapped surfaces and smooth (un-grained) leather. I think Model 3 will potentially have more molded and grained plastic surfaces (instead of wrapped) but we'll see.
Hashbrowns
Model S 75D
Roadster v1.5