I disagree.
I think for a great Avengers ride you need a good mix of props, animatronics, and yes even screens.
You can't truly immerse yourself into another world without use of screens, it can't be done with just animatronics and props alone. Can you honestly say Spider-Man would be as great as it is without the use of screens? Spidey uses the perfect balance of screen and props.
Plus animatronics don't tend to age well, and look dated pretty quick. Animatronics also break down, and Uni has tendency to not fix animatronics that stop working. Look no further than MIB, The Mummy, even Jurassic Park, and ET.
You guys are kidding yourselves if you think the Marvel rides at Disneyland, won't make use of screens.