These libraries just aren’t “there” yet, and I think it’s important to be honest about that.

Exactly. These projects are still during early adoption stage.

While it is production-ready and many are doing so, getting there requires improving documentation, discussing roadmaps with maintainers about a feature you may need (perhaps even contributing it), giving presentations (at your company or at events), and so forth. This can be exciting to some, but a distraction for others. There is certainly plenty of work ahead.