It'd be fine if this route was going to operate in the same way as the BHD-EXT-CDG route does. I.e. You're on the ground in Exeter for 25 minutes; but it doesn't.
I reckon if I wanted to go to Paris, I'd be off on an EZY from BFS. There is no attraction whatsoever in disembarking an aircraft at MAN, farting about for over an hour, then flying onto Paris. How will they factor in the (inevitable) delays on MAN-LDY-MAN? By expecting people to hang around MAN for four hours for the 17.35 departure.
Sorry, but I see few takers for this route (unless booked by accident by someone who thinks it takes nearly four hours to get to Paris from LDY).