you're exaggerating, the graphics are good, the video is compressed to hell and back. And the graphics question isn't even here, if you've played the game you know it looks great, and that's a model you can already see ingame.
The walk animation is just really janky but it's not a big deal.
The map looks OK, although it's nothing special, but the character model looks like they've pared it back a lot since 0.4.9 presumably as part of their "optimization" work.
Looks like they've implemented some rather poor soft body physics (not that it was good before), textures and lighting on the character are almost entirely flat, you can see the character is similarly lit even running through dark areas, and there's no self-shadowing other than from the ponytail which seems like a dirty hack given that the shadow is the same irrespective of light source.
Remember this isn't the same build as 0.4.9, they've explicitly been trying to improve performance and by the looks of it that has come with some tradeoffs.
Again I'm willing to give them a pass on this since we don't know what system they're running it on, but either way it doesn't actually show anything other than a character walking around a map. If subscribers were looking for confirmation that development is progressing then this isn't it.