Who cares if they’re wrong? The point is respect for their opinions and feelings since you’ll have to work with them for twenty years. If you respect them, you get to do what you want to do and they won’t fuck with you or shoot down your proposal.

To be clear this is Japan we’re talking about with the twenty years part. The same thing applies in the US but on smaller timescales though. If people feel appreciated and respected and you have good relationships, they will basically back whatever you want.

To be clear I'm describing a point of view, but not always ascribing to it.

I tend to lean towards thinking backchanneling makes sense as a general vibe, if only because it's a way of doing things that lets people have dignity, and the costs _can be_ low.

I think this is a very naive take. Japanese people will blame you for any failure regardless if you respect them or not. And many times failures happen in japan exactly because people are sitting around doing nothing without acting even when it's urgent to make decision. Backstabbing and toxicity is the major feature of japanese business culture