I find it interesting that Janine has a biometric pass to the ECU especially since she didn't in Mrs Roger's Neighborhood and it saved the ECU then.
Lol...story convenience. That time it was good thing she didn't, this time it was a good thing she did. Plus of course "That was cartoon stuff and it didn't happen in this universe blah blah blah"
A little bit more seriously--"Mrs. Rogers" more or less takes place much earlier in the team's career. "New Ghostbusters" takes place after she's been with the company through a shutdown, a restart, and the better part of a decade or so. She's earned that trust.
I also want to see what everyone's reaction is to a small thing that bugs me. Janine has, several times now, called other women 'sweetie' when talking to them and I kinda feel like that's a little out of character. Granted we really didn't see her interact with other women elsewhere, except Kylie, who she talked to nicer because she was younger. I don't know. It just seems like it's not her, like she is trying too hard to be friendly.
I agree it isn't something we're used to. Maybe Burnham is trying to put a little bit of his own spin on things. And since Janine has a reputation for being a bit abraisive, she IS trying too hard to act nicer to overcompensate. I dunno...