Even as a defender of Moffat, clearly he has to take some of the blame for this, but I can't seriously believe he's the only one to shoulder the blame as some people seem to think he is. There must be wider issues at play and it strikes me RTD probably had more latitude/money when he was in charge (after the first series certainly) I mean this is the man who shipped a bus to a desert regime with a dubious civil rights record right? And I'm not sure anyone can blame Moffat for us losing the Confidentials, that was clearly a cost cutting exercise, and clearly the BBC is having to cut costs, and as for people bringing up Merlin, yes they made 13 eps a year, but that show was also finite, and despite protestations to the contrary Series 5 did seem to wrap things up awful quickly, so it wouldn't surprise me if they were told it had to end this year, and while they might have originally had a five year arc, I bet they hoped they'd get longer.
Where Moffat doesn't so himself any favours is in the hyperbole, when it comes down to it RTD was a much better flim-flam man that Moffat is, but I think as well RTD worked in a more settled, secure environment, and whilst I'll accept that some of the current insecurity around Who should be laid at Moffat's door, I can't imagine he's solely to blame, and irrespective of Sherlock or who his wife is, I'm sure if it was that much of a problem the BBC wouldn't hesitate to get rid of him, albeit in a dignified "it was a mutual decision" kind of way.
Strikes me whoever was in charge right now would be struggling. As I say I'm not trying to excuse Moffat from his part in all this, but he isn't the all powerful anti-Christ some seem to think he is.