Chess.com suggestion?


The engine is providing an objective evaluation of the position based on assumed best play. In most cases, you can't rely on your opponent not being able to see an idea and it's refutation.
I know there's some work around coach improvements, but what you're describing isn't something that's really possible.
If your move was still evaluated as a decent move, just not best, then your option was probably good enough in the situation, but it doesn't necessarily make it better from an engine standpoint.