I commute on the Manchester Airport to Blackpool services and I have to say they put zero sense into the capacity on these services
1N53 (16:48 Manchester Airport to Blackpool) service has always been a 6-car formation. From my experience it's far from busy despite it being a peak train
And then you've got 1N54 or the 17:17 from the Airport. At the start of 2024, I could've sworn they put a 3-car or 4-car 331 on that service more times than the 6-car they're meant to put. That service is bad enough as a 6, if you manage to get a seat on that service (especially on the front set) you deserve an award. And when it is a short formation, you're either stood up, against the windows, or it goes past your station because of overcrowding. I'd even accept a 195 on that service as long as it runs with its booked capacity
It doesn't help that there's zero extra services at peak time on this route except for the extra Barrow - Airport services and the extra Airport - Windermere service at Horwich. They essentially need an additional Preston to Manchester service (and back in the evening) calling at all stations bar Moses Gate, Farnworth, Kearsley and Clifton.
Making the Airport to Cumbria services call at Horwich and Buckshaw would also be helpful, bringing back the 3 services an hour which was removed in December 2021, personally I would also find direct trains from my local station to Lancaster and the Lake District more useful than to Blackpool