Much of the content feels close in terms of tuning right now. However, Shrine and Siege are both currently in major need of balancing (Siege is fine until final boss at which point it needs a very thorough looking at). If you look at both of those keys, most of the top clears are from over a month ago pre “tuning”.
Even if you look at this week’s affixes, many of the top 20 runs with this affix mix in those two dungeons are from back in October (2+ months of gear ago). This should not happen. Understood devs are on holiday, hopefully they’ll get back and fix.
All of this said, the fact that Shrine and Siege exist in the pool of keys makes random access to progression content feel even worse - you roll into a dungeon that is badly in need of tuning and it just feels like a dead key - or 2+ hours of work to “reroll” it (i.e. deplete key in the poorly tuned dungeon and hope you get a better key and then, if lucky, chest that key back into a progression level and hopefully of a key that you need / isn’t broken currently).