Sure.
Will they? No. I wouldn't if I were them. It is definitely a competitive advantage to keep that information proprietary.
For all we know they could be cycling through new hardware at this very moment. If they're cycling through 40 th/s groups of hardware for testing purposes and they left three groups on at once.. Competitors would know "they have at LEAST 120 th/s of hashing power available at any moment."
Whereas if they do not do that, and we infer that there was 100+ th/s over the previous hour, that can be attributed to variance.
They announce their production and equipment levels openly, as it is.
The other thing is... what competition
There's quite a few competitors but their just starting to seriously move out and develop some decent stuff well the serious contenders not BFL but maybe their also moving
http://imgur.com/a/fqpME
Anyways going with cycling myself
Or maybe that hot girl in the data center theory
I trust in Friendcat