Math never solved anything
But yeah, I agree. Chaser items like Jibbers is fine. Upgrades to items that don't lock you out from building a gearset without that one specific item is fine (though why we need more than mythic/reaper/cards I don't know).
But when the mean-time-to-acquire means you won't get the item for half a year... or even several years... then despression sets in. I'm sick and tired of Voices, and though my best alt could use the ring, I just can't bother. No, his vecna + isle set isn't quite as good as one with more MD stuff in it. But I can't be bothered to ransack that quest for several more months to get one again.
With new ("mini")-expansions coming out every year, a fair amount of people won't even get what they are looking for until a new xpack drops and the grind starts all over again. At the very least, there needs to be some kind of pity mechanism. With these drop rates, some unlucky (censored) might not see a specific drop they want until 2030.