i'm not sure if you are retarded or i am for not understanding what you are saying.
A) Theres not enough players to do anything other than solo activity. it is a payed alpha and there are other free options out there.
B) This, in of itself, has nothing to do with the longevity of the server, which is focused almost exclusively on solo exploration and rpg stuff
C) All of the stuff that you incorrectly seem to think are bronzebeard features, are just ascension features that are available on every ascension server. I guess you can say the ascended reworked legacy raids are BB specific but all the servers have the mythic++ ascension shit that isn't exclusive to this server.
D) This server is more about getting rid of ascension stuff, like it got rid of manastorm. i'm hoping it gets rid of RDF as well and just puts in a LFG tool, running random dungeons only to the first boss is gay as shit, but the population has not really been enough to support forming specific dungeon groups and traveling to the dungeon directly.
The lack of players more indicates lack of broad appeal for a SOD like server, rather than lack of longevity. but since it's a paid alpha private server it's really hard to judge. there seems to be a fuck ton of new players within the last week or so.