This fork of Ice and Fire supports craft tweaker recipes which aren't documented here: https://docs.blamejared.com/

Support shown here: https://github.com/Rebirth-of-the-Night/Ice_and_Fire/blob/2c80e45a147896ae8632482eb23a565d42103abd/src/main/java/com/github/alexthe666/iceandfire/compat/craftweaker/CraftTweakerCompat.java

Regardless, the CT recipe edits for the Dragon Forge works but it doesn't accept oreDict values.

For example, we created a script to change the recipe to require actual steel instead of Iron. But <ore:ingotSteel> doesn't work instead I have to specify a specific Steel ingot. In a modpack with many different Steel ingots, it can cause some minor annoyances.

Is it possible to add support for oreDicts?

Sure. In the meantime, you can loop over the items in the oredict (using <ore:name>.items) and add them that way.