That makes sense to me, tools like NESmaker and GBstudio have done a good job promoting their offerings to larger audiences beyond this community, attracting folks who just be virtue of learning about these tools are feeling the itch to try their hand at programming for these consoles. In those cases I could see indie games as their only frame of reference.
I personally like the term homebrew, and I think that aftermarket and indie can refer to similar, overlapping things. The arrival of industry vets with financial muscle to make new games certainly blurs the lines, and ultimately people should use the terminology they feel fits them. What’s important to me is that there isn’t any elitism where one person is insulted that a term like homebrew is applied to them. It’s all amorphous and we want to support each other, be what you want without being defensive.