Bitcoin is mostly used as a form of investment, while Bitcoin Cash is oftentimes used as money or a type of cryptocurrency used for transactions.
Is this bait or do you actually believe such nonsense? Bitcoin
is used a form of payment, I'd dare to say there are even more merchants accept Bitcoin instead of Bcash mainly because it causes confusion among the general public and newcomers so it's better to use the original BTC rather than some shitcoin.
And even though the article does explain some of the difference between both coins, the last part where it says "
If you use them as an investment, you should choose Bitcoin; if you want them for completing quick transactions, you should select Bitcoin Cash." pretty much gives away the biased opinion that website towards Bcash, making it look as if Bitcoin isn't being used as payment method.