I would not read too much into the fact that Gr?inne presented overnight. At this point it’s getting hard to name people who have not. There’s somebody different every night.
Brian Daly (SNI) has already presented overnight and SNI reporters have covered GB based stories for broadcast outside of Sky News Ireland bulletins. An example being the coverage of the explosions at the oil depot in Hemel Hempstead in December.
Makes sense to have cross-over of staff. This has to help staff achieve continuity on output originating brom both sides of the Irish sea.