Well, in part, its a good thing for builders and mappers who want solely vanilla structures/maps to be able to use more blocks and add more variety to their creations, but our whole team does agree with the point you have here. However, new content is most times not bad for a big chunk of the community since it enables more creativity and more variety in things players build. It also allows resource pack creators to have more retexture and redesign options which could ultimately make their content more attractive and appealing due to the occasionally large amount of people who want the textures of something to be more detailed or who want the textures of something to look super realistic.
We're saying new content isn't always bad, it's just how the community decides to receive that content, whether it be all out backlash like with the armadillo or just straight up love for the nether update, there will always be something in an update that will make the community either go crazy with happiness, or with rage. We feel like the community needs to accept that there isn't always going to be something tailored to an individual in a certain update or snapshot, and that the content will ultimately always be what the big bosses decide is good for their game's popularity/recognition.
