Comment by userbinator

Someone has to build, test, deploy, and maintain that app. It also has a back-end. Someone has to build and maintain those servers as well.

...and these days, someone has to justify their continued employment, hence guaranteeing that said app and its related systems will be subjected to constant trendchasing and the inevitable resultant enshittification. It's otherwise perfectly possible to create such an ordering system that will keep working with next to no attention, which is why the most stable and reliable systems I've worked with were created by someone who didn't want to have to work on it more than once.