While this is a very uplifting interpretation of DnD (and one I really hope people would subscribe to), it's somewhat undermined by the number of players who get bent out of shape when you don't min-max your character into a perfect PvE machine.
This of course isn't all players nor to say that this (honestly really) good interpretation isn't valid, it's just that it's not a constant when it comes to the games. Sometimes a game, despite best intentions, is taken in a less than positive way by a small few.
Though...it would be nice if more players just lived with the results of the RNG.