Although there's only one ILS on the 24 end, don't forget the runways are only laterally displaced by 390 metres, and so it wouldn't take a huge deviation to the left to be looking straight down 24L. Runway misidentifications have happened all round the world many times over, and will continue to happen no doubt. Manchester seems to be taking a lead in pro-active work to reduce runway incursions, that means trying to catch more before they happen. If that means some pedantic sounding repetition of hold short instructions but saves a single incursion then it'll have proved itself.
That said, there shouldn't be any need for any more than callsign to tower on first contact; the tower controller has flight progress strips and a radar display so they should be expecting your call. I absolutely hate to hear anybody having a 'pop' on the r/t at somebody else, it's unprofessional and there's no need to antagonise crews and cause them a distraction at any phase of flight.