I think the biggest issue is that people are simply intimidated by learning Emacs from the bottom up themselves. It has an incredibly extensive tutorial baked in. It's almost completely self-referential which distinguishes it from most stuff people engage with today. And that's the crucial part I think because if you start copying other people's configs around or just ask stackoverflow I think you're not going to have a good time. Emacs for me was the first complex thing where I basically could have turned the internet off and just look at it myself.
I honestly credit Emacs with no less than curing me of a weird learned helplessness I got from my awful education that threw tools at me where I had no hope of understanding what they do.