They knew the engine they used wasn't viable. They worked on it a lot, before putting the game for sale. They sold a game, knowing full well the massive limitations of the engine.
Instead, they charged quite a hefty price for people to buy/fund/early access the game. Yet, in as little as 3 months (not sure exact time frame, but the game wasn't up for long at all)...they canned the game for a crappy survival game.
The game was up so little before being cancelled, the devs knew full well the game couldn't last and wanted a quick buck. Sure I can see if problems arise a year after selling the game, and they tried doing their best to get around it. But it was literally not much time at all before the game stopped being worked on.
I kickstarted starforge, and that was a huge con as well. This game is pretty much exactly similar, but at least the devs of starforge made it SORTA playable. You can still play it too. Repopulation? What a waste of money, can't even play it...making it worse than even starforge ever could be.
If these devs ever make another game, just remember they conned everyone with Repopulation