Here the user has just synced a new browser and his extensions are getting added one by one automatically.
Among those browser extensions is Bitwarden.
Here the user would expect something about logging in to his vault. But instead all he sees makes him think his vault is perhaps gone and Bitwarden is treating him like it never knew him.
Sure, all he really needs to do is click the BW icon in the upper right of his screen. But the splash screen he sees so large is rather inappropriate in this case.
OK, it is not technically a splash, but anyway it occupies a lot of real estate and does not mention anything about “Already have an account?”