Yes it would be nice to see all info together, i'm sure that definitely will get improved later with maybe updates but until then as you may know you'll have to goto the heart rate section of your health app and view it all there. Just need to remember when you started and finished. To make it a little easier you can once in the heart rate section slide toggle "show on dashboard" to on.

As for encouraging apple to make a change as always they listen to feedback and that reflects in future updates, so I would goto the apple site and leave the recommendation.