The Modern View introduced a better look and some new features and improvements (better Gear management, configurable DashBoard) but some BIG BIG disadvantages.
Frankly speaking I find the "Activity detail" in modern view a disaster.
The split time were moved to a second tab (no need to do so, in the classic one every piece of info was effectively shown in one page) and worse the "Player" view disappeared (and with it the full page view of the map, bigger graphics and the step by step function).
I undertand that it does not make sense to mantain two parallel versions of Connect and logically the modern will be the one left - but at least, please, implement in it the main features of the classic one. Thank you.