One of the 1st things one must do before taking an article seriously is to research its writer. I checked the history of the guy who is signing it and he seems to be at least sceptic over cryptocurrencies, not against it though.
He seems to be supporting JPMcoin and after the announcement of JPMcoin he's attacking Ripple... coincidence?
I'll make a wild guess (yes, a guess without any ground): "He's an investor of JPM and he's trying to shift people's opinions against Ripple and in favour of JPM."
Well... we can't for sure.
I don't think Ripple or XRP is a scam, but I am not really interested in the cryptocurrency either. Given the large number of partnerships Ripple has gained, it appears financial leaders see value in the project. It seems XRP is more tailored to banks and financial institutions, whereas I see bitcoin and other cryptocurrencies for ordinary consumers and microtransactions.
Wouldn't you say that XRP is more suited for microtransactions in POI though? Sure the little higher transaction fee BTC has in comparison to XRP isn't such a big of a deal right now, but the speed is very important when you're in a local shop. Can you imagine paying with your card and having to wait 5 to 20 minutes for the transaction to finalise?
I know, there's the lighting network, but until I see it I can't comment on it.