Coffin Lid and wind up Echidna too rare?

[Miroku]

I've done 93 runs of Void Ark since release as of this post. I had a chest drop on Run #17 and Run #56, only the minion both times, have not seen a coffin lid. I'm all for having rare things, but maybe one 4th chest in every 50 runs seems a bit extreme?

[RyuSaarva]

I've done 93 runs of Void Ark since release as of this post. I had a chest drop on Run #17 and Run #56, only the minion both times, have not seen a coffin lid. I'm all for having rare things, but maybe one 4th chest in every 50 runs seems a bit extreme?

I did about 120 leviathan extreme runs to see a pony drop for the first time (before any nerfs).