Hathaway's Brand didn't want to sacrifice humanity, she just had a conflict of interest around a decision in a VERY information-limited environment. Her non-love-related argument about the black hole capturing things that would be needed to create planets more capable of supporting life - that Cooper thought was probably just rationalization - made sense and would have led them to a better decision than going down to Mann's planet did. Where we got exactly the sort of sterile environment she was predicting, like the water planet before.
Brand-on-earth's "withheld physics advancements" was sorta the reverse - he withheld his failure because his math hadn't enabled the advances NASA hoped they would and so releasing them would've been telling everyone on earth they were doomed. He decided to put the fate of the species ahead of releasing useless results that he believed would ruin the only chance the species had. (Even without that, not publishing negative results is common anyway!)
Not sure about your complaint with Murph, since you aren't specific, but both kid Murph and adult seemed consistent to me.
I HATED the magic black hole deus ex machina on first viewing, and still don't love it, but found everything up to that amazing. I think a bleaker story of founding a colony on a new planet without the magic trip back to earth at the end could've been even better, though.
Hathaway's Brand didn't want to sacrifice humanity, she just had a conflict of interest around a decision in a VERY information-limited environment. Her non-love-related argument about the black hole capturing things that would be needed to create planets more capable of supporting life - that Cooper thought was probably just rationalization - made sense and would have led them to a better decision than going down to Mann's planet did. Where we got exactly the sort of sterile environment she was predicting, like the water planet before.
Brand-on-earth's "withheld physics advancements" was sorta the reverse - he withheld his failure because his math hadn't enabled the advances NASA hoped they would and so releasing them would've been telling everyone on earth they were doomed. He decided to put the fate of the species ahead of releasing useless results that he believed would ruin the only chance the species had. (Even without that, not publishing negative results is common anyway!)
Not sure about your complaint with Murph, since you aren't specific, but both kid Murph and adult seemed consistent to me.
I HATED the magic black hole deus ex machina on first viewing, and still don't love it, but found everything up to that amazing. I think a bleaker story of founding a colony on a new planet without the magic trip back to earth at the end could've been even better, though.