It appears to me there two different ideas competing to solve the issue of the barrier for new players (at least it seems like it to me but I could be completely wrong).
The first has to do with streamlining certain mechanics that have been core to the system since the beginning (as far I can tell from these posts).
Making these mechanics more unified / consistent with each other would lower the barrier to those who are looking for a new or better game system.
The second has to do with presenting a complete game universe whole cloth so that only those mechanics relevant to that universe are included.
Making such a product would lower the barrier to those who are looking for a new or better game system.
The second one is less problematic since you simply are taking the mechanics that currently exist and skinning them or modifying/replacing them as needed to create a cohesive game universe.
It benefits the GM and Players alike since it can be used like other game systems that exist.
The amount of work to create such a product is the major obstacle.
The first one faces the problem of established mechanics be replaced with new ones (which would become the established mechanics going forward).
The benefit is to make some aspects easier for anyone who doing math on the fly is considered less fun during play.
Now personally, I don't have a problem with either of these being done.
Both of these would make things easier for me as a GM.
It would certainly make things easier for my kids.
However, concerning the first idea above, I am not qualified to suggest that changing the core mechanics would be beneficial for the company and would have the desired effect of pulling in enough new players to make it worth it.
It might but then again it might not. I don't know.
Either of these ideas would have to be fully embraced by the current owners in order to have a lasting impact though.