This is sort of a nonsensical article. You can get the benefit of both but SAND is declining less than MANA in the last drop. Also, SAND will recover faster it looks like. This data is from Kraken but you must ask yourself why is SAND a restricted coin for those in North America?
NOTE I now post my TRADING ALERTS into my personal FACEBOOK ACCOUNT and TWITTER. Don't worry as I don't post stupid cat videos or what I eat!