I have finished my SP, full Season Journey, max rank Coven, upgraded all glyphs and powers. I got 14 mythic shards BUT....No runes

At this point ive basically "beaten" the game - full seasonal journey, full battle pass, max coven rank, fully upgraded glyphs, fully upgraded occult powers, masterworked gear. Yes i know, i can keep chasing upgraded 4 star items, but for all intents and purposes, ive beaten the pinnacle content.

I have FOURTEEN mythic shards. One of these is from coven, rest are from mythic items drop. But i cant craft a single mythic legendary at the jewelcrafter because for some god forsaken reason, every mythic needs SIX IDENTICAL LEGENDARY RUNES to craft.

I have about... 14 legendary runes, of which a couple are repeats. I need SIX jah and SIX bac runes to craft the 2 mythics i want. I have 0 jah and 1 bac. Ive been reforging everything i can, but i just cant get them.

The entire point of the mythic shards was to be a safeguard in case of you having bad luck and dropping bad mythics / not dropping mythics. The entire point of awarding a mythic shard as last rank of Coven reward is to help with this. But this entire system is rendered useless if its locked behind incredibly rare and RNG runes, of which you need SIX IDENTICAL ONES WHAT THE FUDGE.

A safeguard that is designed so poorly, it needs another safeguard to be implemented for it. Its like having a "Break in case of emergency" button behind bulletproof shatterproof glass.

Im pretty sure that by the time i finally get the six runes i need to craft a mythic item i want, i'd have zero reason to use it, because i'd have already done everything in the game, content wise.

I enjoyed this season, it felt quite fun to get a dopamine rush of killing and looting, but the "you need six legendary runes to craft a single mythic" system needs to go.

That is all

(Yes, i know trading exists. But d4 isnt balanced for trading, nor should it be. Legendary runes being low drop rate is fine, if they were just used for their original purpose, but requiring six identical specific runes in a safeguard "Pity" craft for a mythic item is a horrible decision).