Not an issue, just intentional. I looked at the clip and the video, matches up. The polygons and stuff seem to purposely be like that.
The game doesn't look to be glitched, in fact, I looked at the game's Trailer and this video, and it seems to intentionally be like that
I have no idea if this answered yet, and I'd like to know
Is this compatible with GameMaker Studio 2?
So Excited! This game just looks soo darn nice :D