I think it is wonderful that bombs are now craftable but when a recipe is made it should never exceed the cost of what it is replacing. The bomb recipe to me makes sense and it is logical but it is a costly recipe that requires considerable time to craft when factoring in the resources required to mine. As developers I can understand not always being in touch with the game through the lens of a player but bombs are a necessity for those of us who build mostly when it comes to using sculpty/pixels. You put us into a difficult situation that stifles our endeavors in the field of being creative. We get put between a rock and a hard place. Spend an hour mining the resources to get the materials to craft the bombs or spend an hour pulling the pixel/sculpty. Before it was do I have the C required, 10c per bomb is not bad ok I will do that to save time.
I don't think the recipe needs to be changed but we do need the side alternative of being able to quick buy them from the store, many will agree with me.