It seems a couple of older HAM radio aficionados used Morse Code to send messages faster than a couple of young SMS freaks.
Given that Morse Code and the devices used to encode it have been around for a long time and have been refined extensively, I’m not overly surprised. SMS is a relatively new phenomenon and the user interface is still pretty sub-optimal. I mean, sheesh, it’s a phone. The predictive text is a step up, but you’ve still got the network delays in sending/receiving since you’re actually encoding and decoding several times. The morse stuff is just converting from tones into RF and back into tones. IRC would still kick both of their asses.