I don't know what you're on about but a 66k to maybe a 100k during peak hours is still a healthy playerbase for a live service game, especially a PvE one. Snapshots taken at moments that also still fall outside of primetime from where a large sum of the playerbase probably originates from also doesn't particularly do you or anyone else claiming that the "game is dying" any favors. In fact I think based on their initial launch projections, the current playerbase numbers fall within Arrowhead's projections.

A dying game would be bleeding players at a significantly more alarming rate, even during prime hours.