Bedrockgames
I post in the voice of Christopher Walken
Personally, I can't see why a system can't simultaneously provide both bolded elements: rewarding use of system when the matter at hand is covered by said system (which ideally is most of the time), while still allowing and even encouraging one to go outside the rules to handle things the system doesn't cover.
This is very much going to be different person to person I think. My only observation is while I don't necessarily disagree as I have done a rulings based approach with heavier systems, the more the system pulls back, the easier I find it to do what I mention in the post. But I don't think there is one recipe for success here. That is one of the reasons why I like to play and make systems that have different degrees of robustness (sometimes I just want something super light that fades into the background and doesn't require any real look up during play, sometimes I want more interaction with a system)