Interesting that they consider going up against Ryanair at STN to be preferable to going up against Norwegian at LGW, can't help thinking that it won't end well for them either way but time will tell. Didn't SAS operate at STN as part of the STAR Alliance "experiment" many years ago?.
Saying that the STN flights appear to be just placeholders in their booking website and not actually bookable as yet - but that could be just a work in progress.
Or maybe it's a typo and they meant
LTN not
STN..??!