You pretty much summed it up, imo, except I add real estate into something like the category of physical (especially if it is not urban and even better if it supports food production).
I waited for silver to make a big change in value for a long time (sold good percentage at height of Hunt brothers days, then did long slow accumulation up until ETF boosted into double digit) so I do know it can be a very long "eventually" until an adjustment (is allowed). As others have indicated, this time it is the squeeze on physical availability that may be the catalyst rather than it being an "is allowed" change.
I see good future with Endeavor (despite recent quarters' drop in grade at the first two mines) and also like First Majestic, and Fortuna has done me well over the past few years (in and out) just to add to names you mentioned. I am not sure what to think about AUN at this point as it seems there is just insufficient clarity on the path to the future with this reverse split and the huge market reaction.
Cheers.
all jmo