[nly]

The downside of bidirectional seems to be that things like place names are linked via short paths through boring articles like "Census designated place" or "City"

[jwngr]

The bi-directional nature of the search does not change the end result. It is simply a performance improvement.

[solarkraft]

Still - It can be annoying. Maybe there could be an option to exclude articles with specific text/link ratios?