I would agree with you since It would work great when you’re making small decorations and putting details but for repetitive patterns where a skilled chiseler would like to reproduce their work in a massive scale it would slow them down.
Perhaps making this possible feature for the gem chisels be a interesting idea. Or reverting it so gold, silver and titanium have this preview feature but hence gem ones have higher durability, it would render those chisels more useful for someone who wants speed and knows where to strike the voxels.
So precise chisels would in fact be precise, and a new gem category of “Diamond mass chisel production” could be added. I personally would love to record my previous shape and duplicate it in one hit instead of cycling through every shape.