No, not at all. Just that margin calls - and hence Black Swans - are less likely to happen with traditional assets than with crypto's. I mean the respective MPA's. Gold, Silver, Oil, USD, CNY are very unlikely to spike 100% in one day, while it is very normal with crypto's. Black Swans can still happen with any MPA.
The shorters have an incentive to support the BTS price if they are short some MPA. Thus, the more MPA's that are issued, the more stable they are likely to be. Bitshares is still relatively young, but it is starting to grow. Black Swans are a part of the growth pains.
Thanks for the added color.