Two ideas here, and I know ESRI is actively working on #1.
1) Operations Dashboard needs the ability to size widgets equally. The idea of eyeballing height and width of widgets is poor, especially if an dashboard is utilizing many widgets across its space.
2) I apologize if this one has been previously posted. I don't know if this is possible, but resolution responsiveness needs to be "baked" into Operations Dashboard. My screen is set for high resolution, however we have several wall "monitors" throughout our organization that are often set at 720p with resolution differences for easy viewing by individuals in back of rooms/spaces. Often, a Dashboard built on high resolution will be have differently on lower resolutions. Is this even possible to account for in responsiveness? Not sure, but if it is it needs to be looked into.