I can assure you that we will correct these to be settings rather than resources.
I just wanted to check if this is implemented as setting now. We want to release another site, but we need different contact information in footer.
No, it is not implemented yet. The main reason why we haven't done so is that existing store owners that update their themes will need to reconfigure their shops to use the new settings. Most store owners don't have multi-store but will still be affected. So we are a bit reluctant to do it now rather than doing this as part of the upgrade to 3.8. At the same time when running a multi-store then you have no way to change it so we will rethink this again if there is a way to make these changes. If we come up with a good way to do this and make the updates as smooth as possible for existing store owners then we will do it.