Just to clarify - 1.2 MB/s is the same as 9.6 Mbps (8 bits in a byte). Mbps is usually connection speed, MB/s is usually download speed.
Yes, it makes a difference so it would be good to get the word from @PippaC on this.
It is not unusual for people in tech companies to mistake one for another. They're different measures/values.
I have a feeling it will be 1.2Mbps - the FAQ under "What can I do with my Endless Data at reduced speeds?" says: (emphasis mine)
With Endless Data at reduced speeds you can continue to do all the things you love like listening to music, keeping up on social media or streaming video (in max SD quality only). You may not be able to use multiple applications at the same time.
Once you start using your Endless Data you will notice a difference in speed with increased load time, particularly when watching video or viewing images in high resolution. The actual speeds will vary depending on device, location, network coverage and network congestion.
Hi Geeks, yes you are correct - this was a typo that's now been corrected.
Thanks for spotting it!