during his fight with Vulture he also says 'hay por dios, he's got hammerspace' . Hay por dios is 'oh my god', not just in a suprised tone but also irritated. So it's more of a 'for fuck's sake, he's also got hammerspace'
so of the three levels of swears there's fuck which is the highest and would never be in a cartoon pitched at this age range, shit which they skirt close to with shoot and damn/hell
Miguel does say fuck in the movie...except that in the future he comes from (and in the comics) they use the word Shock/Shocking/what the shock...he says shock when figthing vulture too but it is basically a fuck XD