I honestly don't know why people doublestandard this game.
If you can't run maximum graphical settings on any other games, why do you expect Blockland to be any different? Intel integrated graphics are not built for gaming, sorry that Best Buy lied to you but that's the simple truth.
There are a thousand things Badspot could do to make Intel users happy with shaders, but look at it this way, Blockand has had issues with Mac users for basically forever, on just about every level.
Intel users simply can't run shadows, that's petty compared to some issues Mac users have had. You're not going to get an engine change because you can't run one functionality of the game