Its also something that has already been done.
Fair enough.
OTOH, It was also done successfully more than once in the comics as well. Ben always had a reason to be the Thing...or vice versa.
And the plot holes you're claiming to see(again, in trailers), aren't nearly as concrete as you're claiming them to be. The changes are stated to be temporary, are SHOWN that way in the trailers, too.
I never said that they weren't temporary.
I just said that the screen-time in the trailers in which they're shown to be confused is more than enough time for them to be picked off by the SS.
The first thing Sue does is panic as she bursts into flames, then rises into the air, uncontrolled, like a big firey baloon.
Zap. 1 down.
The first thing that Johnny does is try to flame on and he goes invisible, at which point he is jostled and run over by his fellow city-dwellers.
Zap. 2 down.
The first thing that Reed does when he sees his screaming, flaming wife outside the window is nothing but gawp.
Zap. 3 down.
For the record, I don't know what Ben's first act after the switcheroo is, but given that at this point, maybe 5 minutes have passed on the screen, and the FF is down to F One, the SS won't have to concentrate on anyone else but Mama Grimm's blue-eyed boy...
The holes remain just as big as ever.
They are also said to be a side-effect of Johnny's encounter with the Surfer. Why doesn't he use this 100% of the time? Well, why doesn't the Surfer encounter the FF on every world? Not only that, but it seems that the ONLY person that this has a direct effect on is Johnny, with the others simply experiencing the switch because of him.
1) This brings us back to my first post- its bad writing.
2) Even a cursory reading of the SS/Big G history reveals that they've encountered other cultures with very powerful defenders- on Earth, he's battled the Avengers, with members no less mutated than Johnny, and in other storylines, Big G has encountered the Shi'Ar Imperial Guard, the Kree and Skrulls and other races.
And in all of those worlds, with all of their supers- some with much less stable "DNA" than humans- only Johnny gets the contagious superpower flip-flop whammy?
I'm still not buying it, so I'm still not watching it.