The ability for decks like Merfolk and Goblins to remove Ichorid freely is pretty powerful since Ichorid singlehandedly wins both those match ups with Bridge. I think its worse than I think and better than you think. Mostly, it will require playing around it a little more since it behaves like Ravenous Trap.
As far as it not being countered, that doesn't mean much to us since we have no permission. We can Therapy it, sure. But most decks run 3-4 different cards for graveyard hate so its harder to play around. Its quite easy for a number of decks that run Brainstorm or similar cards to dig for a single of this to hamper us. I think its slightly more dangerous than you give it credit.

