You make a valid point that the PEC is something that can be mapped explicitly. Thank you for taking your time to explain this, and I apologise about my dismissive attitude from before.

"high quality products", on the other hand, is very subjective. Businesses can promote any products they sell as "high quality". 
If you look for example at these Overpass results (https://overpass-turbo.eu/s/1zl4), you'll see a lot of claims about high quality stuff that should be taken with a grain of salt. I hope you don't mind too much that I would like to remove that type of marketing-style language from the map.

