I see it the same way and also created a feature request some time ago for the same thing. It would also be in line with RGT, Wahoo Fitness App, Elemnt App, Strava, Intervals ICU, Elevate and all the other programs!
I regularly do my workouts over midnight so this is quite annoying if I want to find out on which day I really did a workout. Also this way the workouts from two days get bunched up quite often.