[b-pagis]

From my experience it serves very well for validating inputs of large forms - e.g. loan application, international payments, etc.

If you need to validate some business logic like if sender's account has funds and receiver's account is not blocked, then this approach starts to look a bit strange. I would guess that the most of the time developers would implement checks so they would fail on first condition and would not check later one. This would result with single error in the array that kinda would look strange.

Validating business logic and returning several errors at the time requires good knowledge of the domain and in depth design of the system you are working. As this creates more complexity and slows down delivery, most of the time it is ditched and used only for particular use cases.

We could say that this would be more applicable to corporate solutions, but IMHO it really depends of the scale of the project, man power and the user experience you would want to create.