tbf it could be 50d6 and it'd still be garbage. 100d6? That'd be a 2~5% (they won't tell us the % right?) chance to do at absolute best, 600 damage, at lv 35. That's like a greataxe crit at lv 3 lol.
For comparisons sake, LGS/MA had 1% chance to do thousands of damage in 2015/ and later, and Fire over Morgrave, from 2023, had effects doing 10d440 with a CC effect accompanying them and those had long since become redundant before this expansion.
Monster and especially raid boss hp has gone up by a lot. Quest bosses sometimes have 600-800k like the Beholder in Hideous to Behold, even dragons with 1-1.4 million hp like in the new House K chain. If these procs are to matter vs the monsters their instakill/cc don't work against, they need a complete change in mindset - not even talking about raid bosses like Karliath and the combined hp pools of marilith/red wizards/portal keepers/...
These small flat numbers are an order of magnitude wrong for endgame content and adjusting them upward slightly won't make them more relevant. Even when Isle of Dread was new and we had the combination crafts with element dmg for 15d6 + a bypass of choice, the elemental damage portion of the craft was ~irrelevant and that was before all the HP bloat of the past 3 years.