i get their point but there aren't many situations it would apply to with movies. i guess the MCU? in which case you could say that it's different because it's 8 movies about 3-4 different characters and each movie has a complete story while being tangentially connected to 2 other movies and its own sequel.

it's like telling someone to watch 8 episodes of 6 different television series but the 9th episode is great. a bad television season is easier to get through than its movie runtime counterpart