Tech stopped flights could use the "Equivalent Still Air Distance" in the pop up, to be able to identify the bottlenecks.
Right now, it only shows the flight times, unlike direct flights, that also have this extra information.
Also, on a similar, but slightly different subject. The new concept of "Distance via airways" is very good, but I was surprised that it was 170nm for a transatlantic transcontinental flight. That seems quite excessive, that over land, the actual route would take this much more (including approaches to airport). It might make sense to budget for that much extra fuel, it seems hard to believe that this would happen on an average flight.