This is what an asset class is, by definition: An asset class is a group of securities that exhibits similar characteristics, behaves similarly in the marketplace and is subject to the same laws and regulations. The three main asset classes are equities, or stocks; fixed income, or bonds; and cash equivalents, or money market instruments.
When did Binary Options EVER have the same regulations as FX Spot, FX Futures, Stocks or Bonds???
And this is EXACTLY how scam brokers are getting away with what they are doing. Fact.
Edit: In the UK for example, Binary Option 'brokers' are regulated by the Gambling Commission, not the FCA as IS the case with true financial asset classes.