Not great if you like their product as a consumer, but 1Password's biggest feature differentiator right now is better family sharing than iOS provides. That could easily change in a future iOS version, and then it's suddenly a lot harder for 1Password to grow by selling a $60/year password manager subscription.
Enterprise features on the other hand, that's not something that OS vendors are likely to ship.
While I don't like the newer versions of Dropbox as much as the old ones, I can understand how pressure from iCloud and OneDrive pushed them toward enterprise features over consumer users.
Maybe not on Mac, but MS will probably try.
Unlike many _other_ product companies, they all dogwood their own code. Also, IIRC all members of a team account are given a family account for their own use (you’d obviously have to convert if you separate from the company), so they are building for _people_.