Thank you for this feedback! Yes, adding trackers manually is the main drawback.

Fortunately, with a proper set up it is q uestino of several minutes to add trackers for let's say a month ahead.

This template has evolved for months passed since the article was published. Now it has a special page for planning habits and adding trackers. Here are the screenshots https://gum.co/oZSMT

In two words, there are several linked views which allow to create a draft list of trackers and then use this draft list as source and copy trackers from it to the new weeks.