Agreed. For example, you can intentionally leave the color of the bike shed unspecified. So the other folks can launch into heated debate over something they can understand and take ownership over the final decision. Meanwhile, the overall shape and functionality of the shed gets accepted per your design, even the very necessity of the shed may be blindly accepted.
It can be tough being "that guy" in every dev meeting who always asks the same awkward questions: "Do we even need to do this? Are we sure? Can we get by with something smaller?"
Sometimes it's easier just to let people's pointless bikesheds through committee. I'll save my political capital for something I feel more strongly about.