Question Author
I must say I find it extraordinary that my remarks caused distress. That was certainly not my intention.
Admittedly I ought to have acknowledged the skill that is undoubtedly involved in putting together a puzzle like this - though, when I first completed the puzzle, I didn't realise that the theme had been applied to the entire thing, not just the grid.
However, I stick by my original point. The clues were simple - that's why almost lots of people apparently were able to solve them quickly, and the theme (which is to say, the source itself) did jump out rather obviously (I saw it after about 2 minutes, and someone else here got it from the preamble).
To some extent, I'm probably reacting against a tendency in these threads to err on the side of uncritical sycophancy. I don't see much value in constantly patting setters on the back. Surely if we feel that a puzzle has certain shortcomings, but should be allowed to say so.