1script - 4:14 pm on Jul 27, 2012 (gmt 0)

Its also not clear to me that higher would be healthier.

I still have a couple of sites that are literally banned by Google (and sporting RR denied notices in WMT) - they tend to gravitate towards the bottom when "By site health" button is pressed (darkened). So, yes, I think higher means healthier.

On the other hand, given that my banned sites are not at the very bottom (in fact, their non-www versions are rather in the middle somewhere), I think it's quite clear that this "health" they are talking about only concerns some technicalities and not overall "site's standing" with Google, so to speak.