There's an old saying about scoring too many points—beware, you made need some of those points next week. This is an example of the early big-win effect, a subject that's been deeply studied by psychologists. An early-season big win, without losses to aggravate the effect, creates a super-high with the team (its a huge dopamine effect).
A good hit of dopamine is the best chemical high a human or a team can experience, but it's a double-edged sword, because the human or team will want the high again, but the standard for it was set at 70 points. Now, Miami didn't intend on scoring 70 vs. Denver, but since they did, that's their standard. They will try to repeat that performance—which based on the history of the league, is highly unlikely. This will cause frustration. Had their 70-point win occurred in, say, week 13, there would be a feeling on that team of having worked toward that pinnacle. Because it was achieved so early in the season that won't happen.
This not to predict a Bills' win, but Miami will spend the season trying to reproduce the "mile-high" feeling they got at sea level in the stadium formerly known as Joe Robbie.