Maybe it's in the article and I'm not seeing it, but it doesn't seem to mention the instant data transmission as a result of the experiment, though it is listed as a benefit of quantum entanglement.
Quantum entanglement can instantaneously transmit quantum information, namely the quantum states of the entangled particles, but it can’t instantaneously transmit classical information. So, in these experiments, there has to be an conventional channel for transmitting additional bits of classical information at subluminal speeds, in order to complete the teleportation process. This is probably just another example of “science writers” not really understanding science.