I think its how abstracted something gets to make it work that IMO is an issue.
I think it is less what is done to make it work and more about the hype generating misleading expectations.
Taking X-Rebirth as an example, pre-release Egosoft repeatedly warned players that there would be only one pilot-able ship yet people still complained about the lack of that feature at release despite being present during those pre-release discussions. Further more, there were complaints about NPC model quality and variety which is probably as much down to hardware limitations as it was due to the modelling itself. In X4, the pilotable ship issues were addressed and NPC models were altered but the variety stayed pretty much the same.
Where ED is concerned, FD obviously had/have a big vision for the end product BUT the vision itself is the abstract part. As I understand it, the vision in terms of overall feature set is largely unchanged although practical matters limit what is or is not feasible and what does or does not make sense to implement. FD seems to be out of touch with their wider customer base which is possibly the biggest issue, and ultimately is probably why the DDF/DDA has been sidelined.
However, FD do seem to be making an attempt to correct their course with their recent change in schedule regarding the release of Personal (Fleet) Carriers and alleged shift in focus towards addressing issues that are of immediate concern to at least some of the community.
[EDIT]The faction interaction concepts explained in the video are little different from say the Civilisation games and the station build concepts are kind of mirrored in X4/X-Rebirth. Nothing is particularly novel about it, only the setting and lore. Arguably what we do have with ED is what was illustrated in that video, but the hype that the community generated around it possibly raised expectations beyond what is realistic to expect.
In ED, CGs/ISIs are the mechanisms to build stations and factions do interact with each other - the pace of things is perhaps much lower than perhaps some were expecting though. However, I can not see the pace of universe change being updated as some might like it to be.[/EDIT]