Mix
2 man long haul ops allow for 13 hour FDP and 11 hours back of the clock on return leg.
Which depending on the time of day was what CAP371 allowed certainly 11hrs back of the clock without the factorisation of sectors which only CAP371 had since Flight Engineers went...
The allowable FDP in the afternoon under EASA is more restrictive than CAP371.
So it just boils down to the factorisation issue in pure FDP calcs and the fact under CAP you immediately came unacclimatised where EASA is a more practical gradual adaptation.
Don't get me wrong the trip you highlighted must be pretty tough but that's the limits your sister airlines have worked to for years n years (or near to)
There are plenty of postings with Thomson is the best gig in the UK so it cant all be that bad?