Digging a bomb currently leaves a permanent stain in your world, which is an appealing alternative to nuking the whole world, though I'd love to get that hardcore option. The fact that digging takes some time makes the misclicks of classic minesweeper unlikely, though it also takes some of the pace out of the game.
The most glaring problem is that currently the game mostly plays itself. right-clicking flags bombs, but also reveals any non-bombs. Spam right-click to win.