ABRP should avoid small roads

🚧 THIS IS A TICKET MIGRATED FROM UPVOTY. The original ticket and comments will be available for a limited time over at:
https://abrp.upvoty.com/b/report-a-bug/abrp-should-avoid-small-roads/
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ABRP likes to use roads tagged in OSM as "highway=unclassified" and low "maxspeed:practical" to safe few dozen meters of route. Instead it should use the parallel tertiary roads, which are much more convenient and safer to use. The now disabled beta routing did this much better than the current productive routing.

In the screenshots I have annotated the route I would like to get from ABRP, and which I did get from the beta routing algorithm.
These are the plans I used:
https://abetterrouteplanner.com/?plan_uuid=dbe3a212-2cbb-49ef-954e-51ddb580a1a3
https://abetterrouteplanner.com/?plan_uuid=1db6d667-fb78-45a8-883f-a7057100f655