It's a way to frame their gameplay
no, it's a shameless shill for sales.
it's unfortunate if they're having hard times, but their life-story is completely irrelevant to this discussion.
I say so because I actually follow the dev and talk to them, I had seen the inception of the idea and it didn't seem to be marketing, It's born out of a joke like their other small game (tuper tario tros and greek and wicked), of course they were playing minecraft, made a connection with their previous game who was already born of a joke (mario and tetris) and then thought about how the great games they like was made out of block, then they decide to pay homage to them.
But you are free to believe otherwise
More from their bloghttp://www.swingswingsubmarine.com/2011/02/22/announcing-blocks-that-matter/
Many games are made of blocks, games we’ve all played like Super Mario Bros. and Tetris. These games have so much in common that we’ve even managed to create another game in which you can play SMB and Tetris at the very same time.
According to the feedbacks players sent us, the experience was pretty fun, but something was missing.A player review of Tuper Tario Tros. on Newgrounds.com
A lot of other games share the same “block DNA” and we, as sorcerer’s apprentices, can’t help thinking about more fusion of game concepts.
And we did it again (oups!), but in our own way, with our own series.
Let me present you our new impossible mash-up : Blocks That Matter !
Or as people who has already playtested the game calls it: BTM.
Where B stands for Boulder Dash, T for Tetris and M for Minecraft.
Three games, retro and modern, made of blocks that matter.
Knowing that, maybe you already have a good idea of what you’ll be able to do in this game. Or maybe not, cause even if we love game references we are honest people and we will never copy/paste any game.
Our intention is to create a unique game experience mixing game elements and mechanics, our own game made of blocks.