It leaves a lot between the lines, too, and 5e's natural language is not exact to begin with.
You can fill in the blanks with knowledge of any or all past editions, or sticking to emulating one past edition that you prefered, when making your rulings.
Or none of them. Knowledge of past editions is not required or assumed.
If you choose to more closely emulate a previous edition using your personal knowledge, that is indeed your prerogative. It's just not an assumption of the 5e rules.
