Compare to its base version, Arcane Initiate(0), this upgraded card is too expensive for what extra benefit it gives. The option to add 2 horrors instead of 1 doom, and 1 extra sanity on it, along with being 1 resource cheaper.
The doom aspect can be easily mitigated by playing this card when the agenda would advance on the next round anyway, as the advancing agenda will take all dooms in play along with it (something I didnt realised ontil the 3rd playthrough...). If you choose to place 2 horrors on it instead, the extra horror soak is meaningless.
True, its more flexible when you choose to play it during mid agenda progress, but your hard earn exp is better spent else where.