I just saw this job opening for visual artists (not me at all, but still curious what kind of person they are looking for).

https://artstation.com/jobs/J1OY/

It's so detailed, a person applying would immediately know what is expected of them and what their role will be. Why isnt this like this for most programming jobs?

Example of programming job opening descriptions:
Knowledge of a backend language (ex: python, java, C++)
Experience with databases
Experience with making and using APIs

This does not in any way describe what I will do at all. (yes this is a copy of most useful information of a job offer I recently got). It does not state which language to work with (I know none of the listed ones, but I do know PHP, C# and javascript/typescript (yes I know) for backend languages.
What kind of database experience? I have worked as supermarket employee and when I had to order new things I had to use a application to update the database. (Ive done more, but who does not have experience with any kind of database in any way)

TL;DR The artist job opening description is so well described. Why isnt it that way for programmers more often