The fact we can all agree pugs are a crap shoot is enough reason to avoid having heavy handed win / lose content with completely random people. It's like bringing religion and politics to the dinner table and wondering what just went wrong after everyone digs their heels in with their unshakable world views. If a fight is doable with 6/8 of the people knowing and understanding the fight, than it probably is okay for a PUG. If a fight is only doable when 8/8 people know every single detail of the fight to a T, and they must also know their own class / job at level that exceeds the tools present in the game, that isn't something that should be available to random PUGs.
Ramuh is on par with a slightly more difficult primal fight and it is enough to wall most people. Going to Furor with it's loose and nuanced mechanics and needs for optimization is well beyond what most people are going to be able to do in a reasonable amount of time. Make no mistake: you can certainly teach people to do it even with pugs, but it's going to take so many sessions to pull off just from the constant rotation of people in and out that you might as well be doing something else entirely.
There is also a phenomena I call "the wave" in this game when it comes to content that runs similar to seasons. The reason that people can't seem to come to an agreement on pugs being a viable option is due to the fact that there is a wave of dedicated people at the start of each patch that live and breath for this content. Get those people in a PUG and they will definitely clear fights because they are effectively not a PUG, but one big subgroup that works together like clockwork around the same point in time. They are the ones that rush for the gear and get in and out as soon as possible.
The actual PUG group is the non-seasonal long term players that don't really fall into one of these waves. These are the long running subs that do content and their own pace and eventually get to niche content like Savage mode, and these are the people that struggle with it when it comes to PUGs. Even if they get a Static this late in the season it really wont help as much because that core group that went with the initial wave already cleared and are optimizing to farm gear. Even if a few are willing to go back and help, the majority of the initial wave want the same thing everyone else does: Go get stuff from other events and such or farm out the gear in the content they have mastered.
This brings up the interesting point that pushing savage out of PF would make sure that the right people pursue the content, but what would happen to that initial wave? Would it swap to pure statics via discord or encourage more cross world linkshells to form? It would be a worthy experiment to try at some point just to see how the community would adapt to it. If they did that they'd probably do fewer savage encounters since they'd have to push resources into making more primal EX level content for the High End Duties.