Hi Alzirr,
please take a look if your change is only based on whether the street is shown as accessible in tools. 
We should not map for the renderer but document the status on the ground. Is there any evidence you can share that confirms your change or the previous status?
https://wiki.openstreetmap.org/wiki/Tagging_for_the_renderer
https://wiki.openstreetmap.org/wiki/Good_changeset_comments

btw.
By definition, a service route does not restrict any access:
https://wiki.openstreetmap.org/wiki/Tag:highway%3Dservice
What was leading you to this statement?
BR
tux67
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            Published using OSMCha: https://osmcha.org/changesets/137588476
            