It's colourcoded and everything to give you an indication on how bad it is. If you spend some time on keeping regions in shape, you will figure it out quickly enough. The whole thing gives a lot less obsession with keeping it at exactly 100% at least.
I know it's colour-coded, but how dark is bad? For example, production. I read "slow", and thought it was awful, like around the 25% mark. Turns out its over 50%. Seemed rather dark to me...
100% is safe, without a doubt. There's a buffer under it in which it's still "safe". But then, bad stats tend to only get worse if left alone, so you want to make sure it never drops below a certain amount. What is this buffer's limit? Who knows. It's easier to play it safe than to take the risk of it dropping like crazy. It's easier to put a little maintenance work here and then to keep it at 100% than to only come when the stats dropped to critical levels.
I hated the idea of that particular change. Still don't really like it, but I can live with it. In fact, it wouldn't bother me at all if the words were completely removed and replaced with a simple colored box that went from bright green to dark red. (In fact, I think I would prefer that a lot more than the words.) But that's a bit hard on the color blind people, isn't it? 
Anyway, the point is that I have no idea what all the different descriptive words are. If you put them all in front of me I couldn't arrange them in order. The effect that they've had on region maintenance in general, though, I think has been positive. You don't see people obsessing over "Gotta get 100%" all the time.
I still don't like it. But I can deal with it. Because they have colors.
The sentiment is mostly similar here. Except that the color code often makes it feel worse than it actually is. And as such, I personally obsess over having top stats more than I used to.
