I spent much of my teaching career telling students that,
…if the notes are on the paper, it is your job to play all of them — well.
We often talked about HOW to master technical passages.
When our practice did not bring everyone to the proficient level, occasionally I had to tell someone (or some people) to simplify or not play a particularly tough passage.
I only recall one time that I actually, after exhaustive (I thought) time devoted to one piece with outrageous runs, that I actually gave the woodwinds a “cheat” run. It worked, as the judges either didn’t catch it, or chose not to ‘ding’ us for it, but I always regretted resorting to that.
Refer to my 5 Steps to Cleaning Technical Passages for Instrumentalists for those techniques.