You almost expect the Fast And The Furious series to smirk at every explosion and flex in order to affirm to audiences that they know they look outlandish and that the audience isn't dumb for watching it. And while it does have Tyrese Gibson pleading with fate a few times to stop the eternal onslaught of tanks and helicopters in his life, it never goes beyond that. In pro wrestling, there's a thing called "kayfabe," which is basically defined as "You better act like this shit is real." The Fast And The Furious series maintains a variant of this, as each sequel is an open invitation to trump the action sequences in the last movie, and rarely ever does it out itself as being preposterous. The logic of physics and technology spikes every two hours in that universe, and the characters simply adjust to it.
Sure, that looks survivable.
"Oh, a device that lets you track anyone in the world in less than a minute? Better get to vroom-vrooming and boom-booming, then." They never turn to the viewers to let them know that they know better. It's extremely sincere about being ridiculous, and vice versa.
The emotional broad strokes of the franchise are about as wide as The Rock's trapezius muscles, and they're taken just as seriously as the stuff involving gear-shifting. It rarely amounts to more than "I love you, because you're my family," or "You hurt someone I like, so I'm going to hurt you now," but these themes are aggressively pursued in a way that's almost inspiring. Vin Diesel saying, "I don't have friends. I have family," is his "tears in rain" speech, and while it's easy to chuckle at that ...
"Awww, this poor caveman thinks he can have feelings too!"
... allowing yourself to get lost in it is way more gratifying. You can totally go into any movie in the Fast And The Furious heptalogy with the goal of providing an open-mic-worthy performance of Mystery Science Theater 3000. But it doesn't make much sense to do that when the cast of the film and the audience are having so much fun with it. It's not about "shutting your brain off." It's about giving yourself the chance to see if you enjoy it.