Charger points in highway

Hi, I am writing from Italy and I drive an electric Renault 4.

​I noticed that when planning a route, charging stops are never suggested at service stations along the highway network (which are often faster due to higher power output), but always at charging stations located off the highway.

​Is this an intentional design choice, a bug, or is there a setting I missed? (I checked, but couldn't find any option related to this).

​If this is intentional, I strongly suggest rethinking it. During a trip, charging directly at a highway service station is much faster and more convenient than having to exit the highway, charge, and then get back on to resume the journey.

​For context, the route I tested was from Genoa (GE) to Valtournenche (AO) in Italy.

​Thank you!