For example, a podcaster/youtuber may want a short intro track. An entertainer or a marketer may want some generic or silly background music.
Does it have a use case for a producer/musician? Maybe. It might give them ideas for chord progressions, melodies, etc. But real music does that too, and much more effectively.
You should never expect enthusiasm to last. How many people are just as enthusiastic about going to the gym for years compared to when they first start out? These are all the things people need to realize before embarking on these solo journeys.
You may not like it, but if a person was drowning and they actually do start to “just swim better”, they will survive. Just do what you need to do.
A drowning person can't "just swim better". That's exactly why they're drowning in the first place.
What you're saying is true but not helpful. There's a whole process that goes into "just do it" that is weirdly unpopular to talk about. You have to become capable first, and that only happens in community where you can safely make a lot of mistakes.