With respect to First Choice's policy on longhaul....
They wanted to expand so needed to source 767 for the LH op. The only ones they could find were the "low-floor" weight versions which dictated how many seats they could squish into the aircraft.
So you can't be entirely sure which came first - the policy shift on LH pitch or the restricted aircraft?
Either way it would seem the be working for them...or is it........
They are a launch customer for the 787 - the 767 replacement. Boeing may be doing a part-ex deal with them which allows them to operate their 'less-full more-comfrotable' 767s on routes where others like Tfly and Mytravel would struggle..... so things may not be as clear cut as they seem.