Bartening doesn't give you crimson fungus making crimson fungus wood non-renevable block.
This is regression in comparison with 20w08a.
Linked issues
Comments 3
I don't think as crimson nylium is still renevable (buy warped nylium, change to netherrack, spread crimson nylium on it)
https://minecraft.gamepedia.com/Fungus
it shows that the crimson fungus is not renewable.
Probably working as intended for the same reason as MC-172170