why didn't they just use the same excuse as restricting trinishphere, a turn 1 golem resolving is just unfun to play against.
that's the actual reason, players want to play their cards, not stare at a full grip unable to interact.
I've played workshop forever, and was absent from the meta for the majority time that lodestone was available to play.
lodestone golem is a completely skill-less card, in the same way orchard+oath is.
truth is shop players have gotten spoiled beyond belief with how easy their crap mono brown decks are to play.
take this as a lesson and start deckbuilding with a little more thought than just 13 sphere effects and pray to go first.
no sympathy on the loss of an idiot proof card, oath and mentor should be next.