I think some people are also scared off by the spread-out, volunteer nature of things.
We're betting at least some people (and we only need a small number; we're not greedy) will feel more comfortable with a paid service with an actual company (not launched yet). Won't ever be a large portion of Fediverse users, but I think a broad diversity of options will be what will ensure the Fediverse "wins" in the long run.