I'm going to just copy/paste the same response every time I see this take.
I really think that the companions come across as dicks because, well, they're under a lot of stress with this worm crawling around in their heads.
There's a sense of urgency and immediacy that's putting all of them on edge. Not everyone deals with stress that well, especially not when facing what's essentially a death sentence.
I think that once you really stop to consider the urgency of the situation and can sympathize with them that they'll seem less like edgelords, and more like people who got sucked up by a giant space squid, violated, and had a time-bomb strapped inside of their skulls and are just trying to cope with it.
This is a matter of perception and expectation. If you're a person who is generally upbeat and cheery, and you've never personally been in a high-stakes, immensely stressful or life-threatening situation, you're likely to view all of the companions as varying degrees of asshole. If you've got some grit and have been through hell in your life, it's more likely that you'll fully understand where they're coming from and realize how well and realistic the companions are reacting to the situation.
