> 97% of the time consensus driven decision making means no deadlock and the other 3% of the time you can put decisions to a vote.

That's now how deadlocks work. You can't just vote your way out of them, if you could, you wouldn't be in a deadlock to begin with. You'd just be at the point where a decision needs to be made.

> If anything I've found that there's often too much consensus (people who just go with the flow rather than voicing an opinion).

That's a separate problem. A healthy and functional team needs to be able to trust one another's opinions and provide an environment where everyone feels comfortable speaking their minds. If you don't have those the value of intrateam communication is comically low.