No.
We don't have to "shut up and let the film be what it is." And neither Josh Trank--or anyone else--gets to demand "new internet rules" of etiquette when the product is poorly received. He made choices with developing this film. And we're making choices in terms of how we react to his film.
Let me be very clear here: it has been the support of the fans that made this entire franchise successful enough from the 1960s to 2015 to even warrant film adaptations in the first damn place, Guard. It wasn't the general audience that carried FF over the decades. It wasn't FOX. And it certainly wasn't Trank's ass. It was us. You seem to be forgetting that.
Longtime comic-readers like C. Lee and myself were here from jump street. Some of us have invested hundreds--if not thousands of dollars--over decades of time to keep the FF comics in print. If you f*** our stuff up don't expect smiles, sunshine, rainbows and cakes. We're going to give you s***. It's the basic laws of cause and effect. If Josh Trank doesn't like it he log the f*** off. Or, better yet, make a damn decent Fantastic Four film.