The engine will never tell you why a move is better, no matter how strong the analysis. If you want to know why a move is better, you ask a coach. All the engine will do is tell you which move is best - and sometimes even super-GMs can't understand what the engine suggests.
If you want engine analysis to replace a coach, you're going to be disappointed no matter how deep your analysis is.
My issue is this:
The analysis has been promoted as GM level before.
We can see it's not the case.
People are looking to the analysis to improve their play.
To improve, you need to know which moves are better and why. You don't get that. You get the wrong information.
It's like having a driver's handbook. You read it. You take the test. You fail. Yet, you provided the exact answers giving by the book you studied.
IMO, it's more harmful than good unless you're aware of the situation.
But, let's let them gloat over their brilliant moves/games because it's good for moral. Never mind all the mistakes that were really made.