Given the spread out nature and short duration of total no huddle examples given, there is not significant evidence that these examples are true no huddle: QB calls the plays based on the defense he sees; or the OC/QB coach calling in two plays each huddle, or even just using the arm play sheet before getting to the line.
Sorry, but there is not a lot of evidence that shows Cam was comfortable enough nor steeped enough in the Patriots playbook last year to run a full, true no huddle offense. He even alluded to the same in his own comments last year.
That may be changed this year - he does look much more comfortable in those aspects of knowing the playbook fully and being able to put that knowledge into action. I'm hopeful if he is named the starter that is true and last year was an aberration, but right now the onus if on him (if given the chance) to prove that indeed was NOT the new normal.