Consent: "a decision is made when there is no objection"
Consensus: "A decision is made when everyone agrees"
Consensus can be used like consent; when "I agree" means something like "I see this is good enough".
We favor a slightly more clear definition, plus we teach how to move forward from an objection, instead of it being a roadblock.
It's subtle but consent is embedded in a bigger approach of "fail fast and often!"