that's a comic, you don't have to see emotion you can read it.
for me the deepest heartfelt moment of the whole trilogy is when peter is in his room and he says 'can't I have what I want? what 'I' need?'
now imagine if that scene was spidey instead of peter (the message that needs to be got across to the audience is still the same), there is no why on this earth that scene would work with spidey in a full mask, not a chance. but in the comic you could have spidey 'thinking' that line of dialogue, have him hunched over a bit (sad) and you could 'kinda' get away from it.
movies are a VISUAL medium and whilst comics are a visual medium as well you can spell out dialogue and not only that reader can read at any pace so pacing isn't an issue.