In the video I posted elsewhere in this thread, he actually breaks down all the assets and every single one of them is from the asset store. There's literally nothing original in the game at all.
There's nothing wrong with buying assets off the store. But the game has to have some original mechanics, and a proposition value that makes it worth investing in. That value can't be "everything that has been done before, but all in one game". The idea has to be original or unique, and that's what's missing here in this MMO!
The infinity weather asset pack is the most "impressive": https://unrealengine.com/marketplace/en-US/product/infinity-...
Here is their "voxel engine": https://voxelplugin.com/
Notice how none of the asset packs are shown together. The "developers" are just showing off walk throughs of the asset pack demo levels.