Well there is the lack of mention it's a BBC original series and not a Starz original series.
I guess you missed the BBC copyright at the end then.
How many times does this come up, It's a Starz original because it's produced/co-produced by Starz, so it is original and exclusive to their network in the US. Just as Stargate was a Syfy Original despite starting on Showtime, Being Human US is a Syfy Original despite being a remake of a BBC Show, etc. They could be showing the least original thing ever but if it was (co-)produced for them then it's "Original" to the channel.