I do not quite understand the meaning of the highlighted text.
In reality, forex and cryptocurrency trading are both forms of gambling, and the risks all depends on how you trade and what strategy you adopt.
Also on the measures you put in place, like stop loss and take profit to protect your profits or minimize your losses.
In all three there's a chance of your going to zero.
Its an advantage of crypto trading system. Where you will be notified by exchange authority if they are going to delist any of your purchased token. Its a chance to get your invested fund back by selling that token or coin. But in gambling you will not get that kind of support from gambling authority.