git has a notoriously overcomplicated interface, so this is a scenario that I can honestly understand why someone wouldn't want to do it by hand
Effective and clear communication is really important and often really hard for engineers. It is said that one goal of stackoverflow was to help programmers learn how to write through practice, as it’s both very hard and very critical to their effectiveness:
https://blog.codinghorror.com/how-to-write-without-writing/
But programmers are also lazy*, so why put in the effort to improve when you can just get llms to do the work for you?
* not necessarily in a bad way