[2023] Should 1 shot caches and imprisoned mages be less common?

I'm seeing 1 or both of these in every mono. I'm wondering what others think of the frequency of appearance as well as the reward level of these two new mechanics.

I think the frozen mage item drops are pretty weak but the sealing glyph is really strong so this is more of a 'don't judge it till you've done 100 or so' type of deal where after you get 1 good base and the glyph you can make something really quite good.

Caches I don't know if I've seen all the types yet. Getting 1 or 2 exalted items (monolith lvl 80/90) is ok. I got one that had each type of endgame dungeon key in it which was really cool. Do the contents of these encounters scale with corruption?

And maybe its not the right choice for these two end game mechanics but I wonder if these or future mechanics should be spawned at more like 1-in-10-monoliths rate, but have their rewards buffed to compensate.

Anyway happy to hear others experiences, overall 0.9.2 is feeling good!