I wonder if there is a deeper issue here?
When we first think of a story, we usually imagine the chain of events leading from the start of the story to the end. This happens. Then this. Then this. The end. We might write this as:
A ... B ... C ... D ... E ... the end.
If we are writing a non-fiction book about these events, that may be how we would write it. We would start at the beginning and work our way logically through to the end.
But that doesn't necessarily work for fiction. For one thing, the main character may not have seen the absolute first part of a story. In theory, every story about world war one ought to start with the assassination of Archduke Franz Ferdinand. Or possibly earlier with the political tensions in Europe at the time. But hardly anyone saw Ferdinand being assassinated. If we were writing a novel about the first world war, we would probably want to show the POV of someone who was fighting in the trenches.
Instead of ABCDE, we might get BCDE. There is no need to show A.
Similarly, it can be very boring if we describe everything. I've been reviewing a book for a friend which describes every event in the order in which it happens. Unfortunately, that means that we are shown some pretty dull stuff. Day one. Day Two. Day Three.
We don't quite see the hero brushing his teeth and going to the lavatory, but it gets pretty damn close at times. That's a story told as A, B, C, D ... I gave up before we got to E.
It's a natural human reaction to write like this. I'm close to finishing a first draft of my WIP and I know I have sections that go A, B, C, D, E. I was making it up as I went along, and it shows. That's not a problem. It's the first draft. In the edit, I'll delete chunks to make it flow.
A character needs to catch a plan to Berlin. In the real world he would make a reservation, pack his bags, get a taxi to London Heathrow, pay the taxi fare, book onto his flight, check his bags in ...
In a novel, we might show him arriving at Berlin and skip all the intermediate stuff. The reader will simply assume it happened.
The real world goes A, B, C, D, E
A novel might go ... C, B (flashback), F, G
And that, I think, is one of the problems with the prologue. It might be necessary for the story. But equally it might be a sign that the writer is going to A,B,C,D,E through the rest of the book. That could be why editors and publish sometimes don't like prologues.
There is also an evolution of style thing going on here. Prologues are a little old hat. The more modern approach is to start the story from the POV of the main character, whether in first person or third. We could make a case that a work of fantasy might be deliberately written in ye olde fashioned style, but then again we might not.
Who knows? Fashions and customs may yet change. We might get bored with starting every story at B or C. The prologue may yet make a comeback. Brown is the new black, or something like that.