to be fair, interiors & cabin are based on airline decisions. Now, seat width on C919 probably are wider than 737s but that's due to 737 being really terrible in that area.
I'm interested in what exactly was the issue
It’s extremely common for route change flights at anytime, this is common for every single planes in every countries, people just make a big deal on c919 with whatever their intentions
The vast majority of people don't look at which model of plane they'll be flying on, so I don't imagine it being any different from other planes on the same route.
True, whenever I fly, my priority would be air ticket prices and time of flight and whether there is a layover (transit). Very seldom did I choose the type of aircraft.
