Actually, no. I marked it as “AddProhibitedForPedestrians” from StreetComplete, because it’s a portion of highway(-ish).

But it should definitely have foot=no. It’s this exit: https://www.google.be/maps/@50.8128143,4.4226361,3a,75y,116.68h,83.24t/data=!3m7!1e1!3m5!1sQWqSnT6pAq078VKdonafuQ!2e0!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3Fpanoid%3DQWqSnT6pAq078VKdonafuQ%26cb_client%3Dmaps_sv.tactile.gps%26w%3D203%26h%3D100%26yaw%3D86.72564%26pitch%3D0%26thumbfov%3D100!7i16384!8i8192

You’re right! Entrance 1 and 2 are not wheelchair friendly. They only have stairs and escalator.

Entrance 3 and 5 have stairs, escalators and elevators (it seems the elevators are at the proper place on the map).