How so?
Suspension of disbelief has nothing to do with being naive or gullible as you claim. It simply refers to the viewer’s acknowledgement that they are watching fiction unfold, and that the plot line adheres less to real-world rules and more to its own internal reasoning and ruling, even if in other circumstances that reasoning would be bizarre and unbelievable.
Narrative justification for producing a work that depicts a span of hours, days, weeks, months, or even years in a mere 2 hours is not naive or gullible.