OM prohibits pedestrian passing through a road whose key is access=destination, unless specifically tagged as foot=yes. This can result in very strange routings. In hardly any country (none that I know off ) the qualification access=destination applies to pedestrians. So pedestrians should always have access unless otherwise specified. Although the OSM guidelines prefer not using this general key and tagging more specifically for vehicles or motor vehicles, there are still thousands of instances where the general tag is used and it would be very unrealistic to expect they’ll all be changed. Therefore OM should consider the majority rather than the exception and allow routing for pedestrians through roads tagged as destination.
The examples are from OSM location SintPietersLeeuw Belgium Ziekenhuis Inkendaal.

The OM screenshots show the original routing ( big detour) and one with an added stop (correct route)