The problem is that these companies (Bethesda & Amazon) want to strip mine an established IP for markets that are unlikely to appreciate the material. They then alter that material to the point of near unrecognizability, and in some cases utter contradiction of premise.
It's like reformulating Vegemite to compete with the flavor of Nutella—it's absurd.
Or imagine if, say, Oskar's Surströmming were bought out and the product —replaced— with pickled sardines for sake of the mainstream palette (, but retaining the same name for brand recognition). It would result in fans of an impostor product, and garner intense enmity (rightly deserved) from those who favor what the product name rightly means.
If the new market doesn't appreciate the product, then what is the point of destructively trying to sell it to them? Wouldn't it be cheaper and less disingenuous to sell them something original that is more in keeping with their tastes, instead of retroactively damaging an established product to make it fit their taste (by becoming something entirely different)?
Different as in like selling ice cream to Inuits from the perspective that most Inuits are lactose intolerant, and so making the ice cream out of bear fat instead of milk—it's not got any cream in it. How can you call that ice cream?—why would they want it with that name?
There is almost nothing of Fallout in Bethesda's FO3, and the Amazon show is based on Bethesda's misconceived product.
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That said, I liked the setting props of the show, and was amazed at the supporting cast they hired for it. Alas not a single scene in the series held any sort of surprise, and each played out just as expected.