Triple A games development are pushing 9 figures now. Sega isn't the company they used to be, hence the crowd funding. they can't afford to take the risk on their own. if their is enough support they could pick it up. Those numbers posted by the O.P. are quite low.
There are successful games that cost less to make, and crappy games that cost more. Besides the kickstarter goal was 2 million pledges to just get the game started, and it went above their estimation. 6 million in a month to be exact.
Further more Sony and Shibuya Productions assistance on the production and marketing end, and Sony with publishing support, Ys Net is able to use the money collected through Kickstarter purely for Shenmue 3’s development.