Taking a brief look at that blog post, the author doesn't know that wt can be set to only notify... Or that wt can be set to act at specific date or time... It's like they never looked at the wt env variables at all, just yolo defaults and then complain that it doesn't do what they want out of the box ('because my settings are the best and they should clearly be the default for everyone!'). For someone who spent much time exploring other options and complaining, they didn't take ~10 minutes to learn that the initial issue was indeed themselves.
(I use wt and set up many options to avoid these issues, successfully)