People stop saying it flopped
The 4 Sonic games on Wii had an average FW of 38k In USA, 17k in Europe and 5k in Japan which totals 60k. These games went on to have average lifetime sales of just under 1.8 million.
Sonic Lost World had a FW of 28k in USA, 10k in Europe and 2k in Japan which totals 40k. If this game has similar legs as the Wii Sonic games then it should sell around 1.2m which isnt bad.
When the herd loses its way, the shepard must kill the bull that leads them astray.