The video is of a 30 story hotel built in 15 days. Your links are to a 15 story hotel built in 6 days. I agree the entrance is plain, but maybe that was a design decision for that particular building. Overall the design is consistent, probably due to the modular construction.
It's not as pretty as you think.
http://zjj.house.sina.com.cn/zhuanti/yuandajiemi/index.html
scroll down to the bottom.
http://zjj.house.sina.com.cn/images/U4528P915T3D125F161DT201...
This is the 15 story hotel entrance. Can you imagine?