The logical routing anyone would take from Broadway to the Kendall MIT train station (or to the plaza or shops on Main street) would be to go through the Marriott as there is a public easement through the building for this purpose. Literally dozens of people get off each Red Line train and go through the Marriott to reach Broadway (and buildings beyond) every train... I cannot figure out how to get OSM to route this way rather than the excessively long routes via Ames St or via 3rd Street (now extended to Main St rather than the semicircle shown in the current map). Given that OSM cascades into lots of other applications, MANY transit trip planning engines send people to the wrong rail or bus stop, assuming a longer walk to the buses on Main Street than is actually used by people who go through the Marriott.

The construction around this intersection appears to be complete with a sightly different intersection alignment