I can’t see that it’s misleading as you can clearly see the temperature is only 22c and as I said it’s just to show the setup and not a guideline for drying filament as that is dependent upon what you are trying to dry.
I’m not having any issues with my prints and it’s very rear I do. like you I’ve been advising people on how to get round issues they are having. If I can PETG dry and printing at good quality with the humidity I face most the time here then surely my methods should be able to help others with their issues. I think good airflow while drying is 70% of battle then dry air after.
Here’s one of my recent PETG prints. Filament is Esun PETG solid white printed on a P1P with a 0.4 nozzle and 0.2 layer height.
Edit: the rings on the dryer look bad because I was using them to setup the filament they were printed in at the time as mentioned a few posts up. As they are just for the dryer I never bothered to reprint them😂