I went ahead and did a brute force fix on that area that annoyed me, even though I suspect it would still not get routed through properly (if only because I haven't added yet a link on the other side).

I traced both the school parking (note the "access=destination", which is, to my great surprise, correctly rendered, at least on Osmarender, but only for areas. Nodes are displayed as normal parkings) and the adjoining Park and ride, the various surrounding accesses (including the short stairs to the church while I was at it). Also threw in the newly erected concrete blocks (you know these things usually found on roadwork zones?) preventing improper parking.

...

*sigh* next time I guess I'll give up and just trace the church already...