I agree with BitLex here. Cheaters can find their share count easily anyway, since the pool still tells the worker whether or not the share was accepted. Even if that were taken out, a cheater could monitor the work that their miner was sending and check if the sent work was of a low enough hash and not stale, and count that way, so a person's share count isn't secret information. Taking it out just frustrates honest people tweaking/monitoring their legitimate miners.

I don't really care about what information is on the statistics page, though, since I don't check that very often, but taking out the current round duration is another piece of easily-obtained information: (Current Timestamp)-(Timestamp of last round ending)

I don't understand pool cheating all that well, but to make an educated guess, the only really secretive information is the total number of shares in the current round. I have no objection to removing that. (And, you could put the estimated reward back in, just lower the decimal precision so it's harder for cheaters to calculate the share total exactly.)