No, the automation will not check any of your nearby lights and mimic them.
Interesting idea though.
You would have to create a template sensor to trigger the automation when your nearby lights go above X and then use scenes to do this. So you could do it but it would be set values and not a floating %. Scene would be 100% (or whatever you like) and your OFF scene would be 30%. If you then would like to turn it OFF between certain times then you would have to also use my 
Turn Light, Switch or Scene On & Off with Trigger Conditions blueprint with this one.
Blacky 