They had the market to themselves for budget RWD, now Ford and Rover had gone.
Yes but maybe that can be better explained by the fact that that market had simply disappeared?
Most car owners don't care(if they even know) which end their car drives. Mass market manufacturers stopped making large RWD cars because they had stopped making small and medium sized RWD cars to share parts. The Omega was built on an ancient and obsolete platform that shared nothing with the rest of the range except its engines. Its replacement was always going to be based on a FWD platform, and the ever increasing size of model replacements meant the Insignia did just that. The facelift was a budget way of stretching out a tired looking range until that happened. The original Omega interior has dated really badly, whereas the only thing that a F/L dash is 'missing' to look up to date is a large screen.
I think the FL interior looks more "old man's car" than the PFL/MFL. The PFL/MFL is more sporty.
If we are talking about the cloth versions, the FL has a slight advantage because of the door cards. That is if it's one of the non wood effect versions which look much better. The large phony wood on the middle makes it look even more conservative.
Now with the full leather interiors, the PFL/MFL wins hands down.
Very sporty and still looks great today. It looks like a super saloon interior even if the performance from the engine is not there. Not contemporary looking but still looks great. The FL doesn't look contemporary either. A screen wouldn't make it do. Look at the 2017 Mercs, Audi and BMWs. A screen would just look like an add-on.
At least the full leather MFL/PFL in black and no wood effect looks great even if it doesn't look contemporary.