Sorcerer passive node: Arcane Obliteration

[Eimernase]

The node say “spell critical multiplier: +10% per point”

So far so good, but it seems it doesnt increase neighter the critical chance or critical strike multiplier.
I spent 5 points in there and nothings changed, so i dont think it work as intend.
So is there in general a multiplier for spell critical in game? i think i never see something like this before.

Screen of my char values: https://imgur.com/a/QsGmmFC

the node with 5 points: https://imgur.com/a/9TiVXEc

Nothings changed at my values, so i respecced the points i droped it into the Node which is required for above one. This node ( Crackling Precision) give critical strike chance ands works well.

There is a thread from may 2019 with the same, seems this issue was not fixed in 5 years

Mark of Brilliance/Promise of Power & Arcane Obliteration Don't Seem to Work

With 100% chance to get a mark when casting a sorcerer spell (Have tried black hole/volcanic orb, meteor), I do not seem to gain elemental damage as the talent says I should. Nothing shows up in the character sheet nor does my damage seem to increase against mobs. I also never notice the 300% increased damage every 5 stacks should give. Arcane Obliteration doesn’t seem to do anything either, my crit multi in the character sheet does not change.