Their creators probably always knew that their coin was going to be at this low, low price for a very long time. Whatever we witnessed on Sia's rise previously were all the actions of whales and profit takers. I do not usually like how projects launch ICOs for products that do not exist, but I guess it is not Sia's fault in this case that millions were invested in this project and that has partially piled on the pressure.
In fact I am amazed that the price has held so well with all the ETH miners dumping it daily. 2 cents in 2018 = modest estimate!