My apologies, Nudd. I fear I'm the one who's caused offence. Had I realised this was a debut puzzle I'd have been less inclined to criticise the grid. The number of unchless entries didn't lessen my enjoyment of the puzzle but they did make it quite easy.
I don't think it's a question of aesthetics. If a solver has all the crossing answers, an entry with no unches doesn't need to be solved. It's not quite as straightforward as that in your puzzle because the solver still needs to sort out the wordplay and shifts to get the messages, but nonetheless I reached a point where I had a full grid with several clues not tackled.
Obviously it's different if grid entries are different from clue answers, in which case some setters make concessions in fairness to the solver.
As a setter myself I'd be the first to admit that my grids sometimes fall short of the ideal, and when I started setting puzzles I was less fussy about grids than I am now, but I've always been impressed by setters like Kea, Shackleton, Schadenfreude and a host of others who produce puzzle after puzzle with perfectly-formed Ximenean grids, and that's what I aim for even if I don't always succeed.
Sorry again if I came across as carping and unappreciative. I enjoyed the clues, sorting out the word shifts and the endgame.