Does the router think that walking past traffic_signals slows you down?

[A Thompson]

I was browsing the pedestrian section of routing.xml online here. This part caught my attention:

<point attribute="obstacle_time">
<select value="5" t="highway" v="traffic_signals"/>
<select value="10" t="crossing" v="unmarked"/>
<select value="5" t="crossing" v="uncontrolled"/>
<select value="30" t="crossing" v="traffic_signals"/>
<select value="5" t="highway" v="crossing"/>
...
</point>  

According to the OSM wiki here and here and the usage near me, highway=crossing + crossing=traffic_signals can be placed at a pedestrian crossing on a road even when no intersecting pedestrian way is mapped. E.g. there is a crossing, and pedestrians are probably on sidewalks but they aren't mapped as separate ways.

Would the XML above penalise a walking route along a road passing such crossings, even though they probably wouldn't need to be taken?

I'm just naive and curious, so please don't reply if you have anything better to do :-)