We can all agree that SMS is massively overpriced, but this is a pointless article. There's a very good reason it's not priced like data, it's because SMS is old tech and costs the operator more than just the traffic. The mobile provider has to have pretty beefy systems on the back-end to store and forward the SMSes, the protocol used to send the SMS to/from the phones is incredibly inefficient compared to a data connection and takes up more resources on the operators' infrastructure.
I'm not defending the SMS price, but sensationalist BS articles like this do nothing to inform the public in any way and serve to reinforce misconceptions. I'm not sure if it's honest ignorance from the author, or wilful clickbait.
Please, the investment was paid off long ago. SMS is pure profit now.
"Costs the operator more" means something like 10c per SMS would be acceptable, but not 50c. If anything, the price of an SMS should decrease as time goes on - hasn't really.
Just let the dinosaurs die.