kartonage
It shouldn't and the standard routing engines/provide can and will route over this segment. I suggest to contact the provider of the routing app you are using, they might also use different data.
There is no data here restricting access. (https://www.openstreetmap.org/directions?engine=fossgis_osrm_car&route=42.01811%2C-71.28163%3B42.02182%2C-71.28078)