If I really want to spread something that brings me joy to other people so that they might experience it too, I may have to resort to polishing up the presentation. The fact that I'm trying to give something with no strings does not obviate the need to make it look palatable. This is a reasonable take I think. I also think I've known and have had a sense for that, even if I try to ignore it, because "selling" something is typically uninteresting to me. I'll try to keep it in mind the next time I have something I think I want to share with strangers, and put more effort into how it is presented so they might be more inclined to look into the actual thing I'm trying to show them.
I'll make my own analogy, with it being like trying to share a chocolate cake that looks like literal turds to strangers.
People say shit like this when they're the producer. But then turn around and nitpick when they're the consumer.
It's not selling something, it's about it being a proxy for if you understand the product well enough to communicate it's key points.
To wrongly quote Twain: "I would have written a shorter letter, but did not have the time"