Possible implication of Mitron's Sigil being Upright instead of Upside Down?

[Kuroka]

Only other reason for their appearance could be is a re-mantling of the title "Mitron", but the ascians who had the power to do that are now dead.

But we dont actually know... they take their "jobstone" to an shard and "promote" them... we dont know the limit of that, like, why not using several at once? Or does it cost too much power, or is not every shard fit to get transformed? We have no idea, by now we might have some of them back again but on other shards as they proofed to be fodder for us lol