Sure looks like a bioweapon China was researching in Wuhan lab.
More contagious, if even true, does not necessitate greater mortality.
If it is a bioweapon created in China by Chinese scientists, it is going to be of the same superior quality by which all Chinese products are known. The Chinese are renowned for their extreme ability to make durable and well-crafted products which are sought after by customers the world over. The reason so many companies have moved their factories to China is not because Chinese people work long hours for slave wages, but because they are meticulous craftsmen with high standards for quality.