The miscommunication between the certain crews

She's comparing species - Alien vs. human.  Not specifically the Company, just humans in general.

agree, once id wrote the initial part that donned on me to be more likely impression she was giving

maybe one additional note
in Prometheus, the scene where David, Elizabeth and Peter Weyland arrived at hypersleep terminal and woke up the big boy, Elizabeth wanted to know what the engineers were up to. In that case Weyland interrupted Elizabeth even he said that she could be killed if she did not stop starting questions. I mean it could be one case why information was always held to other crews and kept be internally.

I had the impression Weyland interrupted Shaw because he was solely worried about his immortality wish.

Yeah he didn't want her jeopardising it.