One reason I use Mac keyboard text replacement - it is available on all apple devices with no need to mess about with keyboards. It doesn’t have auto fields like date, but I put place holders like !D in my text which I can use find and replace on to quickly set.
I found I didn’t use all the bells and whistles of Textexpander and I try and avoid monthly fees. Keyboard Maestro and Alfred only work on MacOS. I didin’t want to use different approaches on different platforms. When I analysed my needs, I found text replacement was good enough.
Indeed, but we do have a wide range of customers with a varying range of technical savvy or inclination. Perhaps your example may spur someone to try it for themselves.