Rather like the perennial complaints about GCSE (and its precursor, GCE) there have been complaints about dumbing down of the Listener ever since I started solving it. Every year there are a few puzzles that seasoned solvers regard as too easy, and others that are regarded as unfairly tough. The average level of difficulty over the year has been fairly consistent. 2007 was a relatively easy year, 2009 and 2013 were more difficult than average. These are subjective judgements based on my solving experience. I note the difficulty of every puzzle after solving, along with other details.
So far this year looks no different to 2015, though possibly easier than 2016, but we haven't had a Sabre yet. Perhaps he's what's in store for us next week.