I also think that the project, I'm not saying it's dead, but it's greatly slowed down, I think it has entered a phase of maintenance only, bug fixes only, just look at the release-notes, the last real update with new features was the 6.7.4, then only improvements nothing big.
I think they invested a lot of time in compliant with the certifications (ISO27001:2013).
Next July my premium plan will expire, and before renewing it I'm evaluating alternatives, in particular bitwarden, always self hosted, but unlike enpass and very open to the community there is a road map.
I strongly hope I'm wrong and that the project is alive instead.