Oh, I think about the full picture.
I understand that their origins need to be changed. Even outside of the legalities of Marvel/Fox’s copyright, which is a complicated and gray area concerning Quicksilver and the Scarlet Witch right now, they’re origins would be revised significantly. It’s the nature of adaptation from one medium to another. Film is severely decompressed - comics, not at all.
I never at all expected them to be mutants. Outside of copyright, it’s a concept that doesn’t exactly fit in with the type of realism the MCU has cultivated in their films.
I take issue with how Avengers 2 (be it Marvel Studios, Whedon, the scriptwriter, or whoever in particular) changed their origins. I don’t even have an issue with HYDRA giving them their powers*. But there’s one aspect I do take issue with, and that is how, in interview, both Olsen and Taylor-Johnson have said the word “volunteer”.
The Maximoffs were always explicitly Romani in the comics, later revealed as Jewish-Romani, the two largest ethnic groups targeted for extermination. Furthermore, they are twins, which were specifically singled out for medical tests and experimentation by leading Nazi authorities like Mengele. There are a lot of unburried bodies in Europe of Jewish and Romani children in the name of furthering Nazi science. There are a lot of survivors still today who carry the memory of those experiments - either on their own bodies or in their memories.
None of them ever “volunteered” for experimentation.
None of them ever went to the Nazis because they were “angry” and “wanted revenge”.
(Note: choosing to not have Wanda and Pietro be Roma or Jewish in the film does not resolve the issue. Whitewashing your minority characters to avoid racist implications only makes it more racist)
Choosing to rewrite their origin in such a way paints victims of genocide as culpable in their own destruction. It says those victims deserved their pain and deaths. That they asked for it.
My bachelor’s degree is in History and German Studies. I spent a lot of time reading and watching survivor narratives, and had the opportunity to hear living survivors speak on their own experiences. It’s not pleasant. And I can see why Marvel Studios would want to skirt around the topic and legacy in their big-budget popcorn films. But they are so far not doing it in a way that serves to honor either the legacy of those characters or the real life people who experienced the same atrocities.
But, you know, maybe Marvel could surprise me. Do I believe that likely? No. Because, narratively, in a (presumably) two/two and a half hour picture which has to include action, all the Avengers, introduce Ultron, Vision, Pietro, and Wanda, foreshadow Avengers 3, it is much easier to say “they volunteered, bad shit happened, they did bad things, oh no the bad guys are evil, switch sides, flash, boom, bam”. But I would be much happier to be proven wrong.