you get the impression that Blackpool council is not concerned about maximising revenue.
With the current timetable money is lost because many passengers are left behind, there is often no chance of catching a tram into Blackpool for people catching a tram from anywhere near Gyn Square, and they are often so rammed that cash collection is impossible for conductors.
Are conductors on commission for ticket sales? If not, I can't see any reason why there hasn't been a bigger push towards off tram ticketing.
They could make some money by pushing more app sales for the tram tickets and then they can get the revenue even for fuller trams rather than relying on conductors getting to people on the tram to charge them.
I've less experience in Blackpool recently but I have been on West Midlands Metro which works off the same system and you really get to see how much revenue is lost both on short distance passengers if conductors are busy selling tickets, shorter distance people have more chance of getting away with not paying but as you say with trams being full.
Even if only a few people switch to off tram ticketing as well, checking/scanning tickets is much quicker than selling so the more that can be sold off tram, the quicker conductors can get to those who want to pay on the tram. It's just common sense.
Blackpool Transport really is baffling with how out of date it wants to be.