Thats the reality in cryptocurrency you cant predict the price stability. Thats why in the very beginning you should know how to minimized the risk. Buy just investing only that you can afford to lose. In my own understanding You invest in FET via IEO. in that reason you just agree all the terms and condition therein so you cant blame FET or Binance since you know the risk already.
The price will be much less stable when people find out about it. It is better to invest in something that is already in the leading market like Bittrex.