very different dynamic with PLS compared with the likes of CUN, PUJ, KIN, MBJ etc
PLS to be served from LHR via NAS for winter as you rightly say. It’s no loss in capacity for LGW as it was only an add on from ANU twice a week.
PLS does naturally, in my view, lend its self better to being an add on to NAS than ANU, geographically, and also, it’s a very premium heavy destination, often in precovid times, the J loads were often very healthy, as with W where as M, less popular. The LGW 777s offering just 32J, I think PLS is better served from LHR with a bigger J cabin and better facilities for premium passengers.