Very odd, really. Pretty much across the board, Monday and Friday are the days of the week with highest demand. Perhaps there's a liaison with KLM that we aren't seeing or the schedule isn't fully complete yet. We have to presume they know their market though. There are, however 2 CDG-NCL flights on Mondays and Fridays. AF mainline night stoppers.
As for LH double daily FRA, lets hope soon. I would like to see Aegean and Lufthansa support eachother and build *A loyalty in the North East. Turkish would be a nice addition to that as well.